Arid West 2016 Regional Wetland Plant List · Arid West 2016 Regional Wetland Plant List Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant

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Arid West2016 Regional Wetland Plant List

Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant List: 2016 wetland ratings.

Phytoneuron 2016-30: 1-17. Published 28 April 2016. ISSN 2153 733X

http://wetland-plants.usace.army.mil/

Mimulus guttatus DC. (Seep Monkey-Flow er) Photo: Ben Legler

List Counts:

Wetland AW

UPL 174

FACU 907

FAC 787

FACW 862

OBL 789

Rating 3519

User Notes:

1) Plant species not listed are considered UPL for wetland delineation purposes. 2) A few UPL species are listed because they are rated FACU or wetter in at least one Corps Region.

Approved for public release; distribution is unlimited.

http://wetland-plants.usace.army.mil/

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2016 WETLAND PLANT LIST MAP OF REGIONS AND SUBREGIONS

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Scientific Name Authorship AW Common Name

Abies amabilis (Dougl. ex Loud.) Dougl. ex Forbes FACU Pacif ic Silver Fir

Abies bifolia A. Murr. FACU Rocky Mountain Alpine Fir

Abies grandis (Dougl. ex D. Don) Lindl. FACU Grand Fir

Abies lasiocarpa (Hook.) Nutt. FACU Subalpine Fir

Abies procera Rehd. FACU Noble Fir

Abutilon theophrasti Medik. UPL Velvetleaf

Acanthomintha ilicifolia (Gray) Gray FAC San Diego Thorn-Mint

Acer circinatum Pursh FAC Vine Maple

Acer glabrum Torr. FAC Rocky Mountain Maple

Acer grandidentatum Nutt. FACU Canyon Maple

Acer macrophyllum Pursh FAC Big-Leaf Maple

Acer negundo L. FACW Ash-Leaf Maple

Acer platanoides L. UPL Norw ay Maple

Acer saccharinum L. FAC Silver Maple

Acer saccharum Marsh. FACU Sugar Maple

Achillea millefolium L. FACU Common Yarrow

Achillea ptarmica L. FACU Pearl Yarrow

Achnatherum diegoense (Sw allen) Barkw orth FACW San Diego Rice Grass

Achnatherum hymenoides (Roemer & J.A. Schultes) Barkw orth UPL Indian Rice Grass

Achnatherum nelsonii (Scribn.) Barkw orth FACU Nelson's Rice Grass

Achnatherum richardsonii (Link) Barkw orth UPL Richardson's Rice Grass

Achyrachaena mollis Schauer FAC Blow -Wives

Acmispon americanus (Nutt.) Rydb. UPL American Deerw eed

Aconitum columbianum Nutt. FACW Columbian Monkshood

Aconitum infectum Greene FACW Arizona Monkshood

Aconogonon phytolaccifolium (Meisn. ex Small) Small FAC Alpine Fleeceflow er

Acorus americanus (Raf.) Raf. OBL Several-Vein Sw eetflag

Acorus calamus L. OBL Single-Vein Sw eetflag

Actaea rubra (Ait.) Willd. FAC Red Baneberry

Adiantum aleuticum (Rupr.) Paris FAC Aleutian Maidenhair

Adiantum capillus-veneris L. FACW Southern Maidenhair

Adiantum jordanii C. Muell. FAC California Maidenhair

Adoxa moschatellina L. FAC Muskroot

Aegopodium podagraria L. FAC Bishop's Goutw eed

Agalinis calycina Pennell OBL Leoncita False Foxglove

Agalinis tenuifolia (Vahl) Raf. FACW Slender-Leaf False Foxglove

Agastache urticifolia (Benth.) Kuntze FACU Nettle-Leaf Giant-Hyssop

Agave americana L. UPL American Century-Plant

Agave sisalana Perrine UPL Sisal-Hemp

Ageratina adenophora (Spreng.) King & H.E. Robins. FACU Crofton Weed

Ageratum conyzoides L. FACU Tropical Whitew eed

Ageratum houstonianum P. Mill. FACU Bluemink

Agoseris X agrestis Osterhout (pro sp.) FAC

Agoseris X elata (Nutt.) Greene FAC

Agoseris aurantiaca (Hook.) Greene FAC Orange-Flow er Goat-Chicory

Agoseris glauca (Pursh) Raf. FACU Pale Goat-Chicory

Agoseris monticola Greene FAC

Agoseris parviflora (Nutt.) D. Dietr. FACU Small-Flow er Goat-Chicory

Agrimonia gryposepala Wallr. FAC Tall Hairy Grooveburr

Agrimonia parviflora Ait. FAC Harvestlice

Agrimonia striata Michx. FACU Woodland Grooveburr

Agrostis capillaris L. FAC Colonial Bent

Agrostis elliottiana J.A. Schultes FACU Elliott's Bent

Agrostis exarata Trin. FACW Spiked Bent

Agrostis gigantea Roth FACW Black Bent

Agrostis hendersonii A.S. Hitchc. FACW Henderson's Bent

Agrostis hyemalis (Walt.) B.S.P. FACW Winter Bent

Agrostis idahoensis Nash FACW Idaho Bent

Agrostis lacuna-vernalis P.M. Peterson & Soreng FACW

Agrostis mertensii Trin. FACU Northern Bent

Agrostis microphylla Steud. FACW Small-Leaf Bent

Agrostis oregonensis Vasey FACW Oregon Bent

Agrostis pallens Trin. FACU Seashore Bent

Agrostis pauzhetica Probatova FACU Thermal Bent

Agrostis perennans (Walt.) Tuckerman FAC Upland Bent

Agrostis rossiae Vasey FAC Ross' Bent

Agrostis scabra Willd. FAC Rough Bent

Agrostis stolonifera L. FACW Spreading Bent

Ailanthus altissima (P. Mill.) Sw ingle FACU Tree-of-Heaven

Aira caryophyllea L. FACU Common Silver-Hair Grass

Aletris farinosa L. FAC White Colicroot

Alhagi maurorum Medik. FAC Camelthorn

Aliciella pinnatifida (Nutt. ex Gray) J.M. Porter FACU Sticky Cheat Gily-Flow er

Alisma gramineum Lej. OBL Narrow -Leaf Water-Plantain

Alisma lanceolatum Withering OBL Lance-Leaf Water-Plantain

2016 NWPL - National Wetland Plant List for Wetland Region = AW.

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Alisma triviale Pursh OBL Northern Water-Plantain

Allenrolfea occidentalis (S. Wats.) Kuntze FACW Iodinebush

Alliaria petiolata (Bieb.) Cavara & Grande FACU Garlic-Mustard

Allium bisceptrum S. Wats. FACU Aspen Onion

Allium cernuum Roth FACU Nodding Onion

Allium douglasii Hook. FAC Douglas' Onion

Allium geyeri S. Wats. FACU Geyer's Onion

Allium hickmanii Eastw . FACU Hickman's Onion

Allium hyalinum Curran FACU Glassy Onion

Allium lemmonii S. Wats. FACU Claybank Onion

Allium madidum S. Wats. OBL Sw amp Onion

Allium schoenoprasum L. FACW Wild Chives

Allium validum S. Wats. OBL Tall Sw amp Onion

Allium vineale L. FACU Crow Garlic

Allolepis texana (Vasey) Söderstrom & Decker FAC Texas-Salt

Allophyllum gilioides (Benth.) A.& V. Grant FAC Dense False Gily-Flow er

Almutaster pauciflorus (Nutt.) A.& D. Löve FACW Marsh-Aster

Alnus glutinosa (L.) Gaertn. FACW European Alder

Alnus incana (L.) Moench FACW Speckled Alder

Alnus oblongifolia Torr. FACW Arizona Alder

Alnus rhombifolia Nutt. FACW White Alder

Alnus rubra Bong. FACW Red Alder

Alnus viridis (Chaix) DC. FACW Sitka Alder

Alocasia macrorrhizos (L.) G. Don FACW Giant Taro

Alopecurus aequalis Sobol. OBL Short-Aw n Meadow -Foxtail

Alopecurus arundinaceus Poir. FAC Creeping Meadow -Foxtail

Alopecurus carolinianus Walt. FACW Tufted Meadow -Foxtail

Alopecurus geniculatus L. OBL Marsh Meadow -Foxtail

Alopecurus magellanicus Lam. FACW Alpine Meadow -Foxtail

Alopecurus myosuroides Huds. FACW Slender Meadow -Foxtail

Alopecurus pratensis L. FACW Field Meadow -Foxtail

Alopecurus saccatus Vasey OBL Pacif ic Meadow -Foxtail

Alternanthera philoxeroides (Mart.) Griseb. OBL Alligator-Weed

Amaranthus acanthochiton Sauer FACU Greenstripe

Amaranthus albus L. FACU Tumblew eed

Amaranthus arenicola I.M. Johnston FACU Sandhill Amaranth

Amaranthus blitoides S. Wats. FACU Mat Amaranth

Amaranthus blitum L. FAC Purple Amaranth

Amaranthus californicus (Moq.) S. Wats. FACW California Amaranth

Amaranthus crassipes Schlecht. FAC Spreading Amaranth

Amaranthus obcordatus (Gray) Standl. FACU Trans-Pecos Amaranth

Amaranthus palmeri S. Wats. FACU Careless Weed

Amaranthus retroflexus L. FACU Red-Root

Amaranthus spinosus L. FACU Spiny Amaranth

Amaranthus tuberculatus (Moq.) Sauer FACW Rough-Fruit Amaranth

Amaranthus viridis L. FAC Slender Amaranth

Amaranthus watsonii Standl. FACW Watson's Amaranth

Amblyopappus pusillus Hook. & Arn. FACW Dw arf Coastw eed

Ambrosia artemisiifolia L. FACU Annual Ragw eed

Ambrosia monogyra (Torr. & Gray) Strother & B.G. Baldw in UPL Needle-Leaf Burrobush

Ambrosia psilostachya DC. FACU Perennial Ragw eed

Ambrosia pumila (Nutt.) Gray FACU Dw arf Burr-Ragw eed

Ambrosia trifida L. FAC Great Ragw eed

Amelanchier alnifolia (Nutt.) Nutt. ex M. Roemer FACU Saskatoon Service-Berry

Amelanchier arborea (Michx. f.) Fern. FACU Dow ny Service-Berry

Amelanchier cusickii Fern. FACU Cusick's Service-Berry

Amelanchier utahensis Koehne FACU Utah Service-Berry

Ammannia auriculata Willd. OBL Eared Redstem

Ammannia coccinea Rottb. OBL Valley Redstem

Ammannia robusta Heer & Regel OBL Grand Redstem

Ammophila arenaria (L.) Link FACU European Beach Grass

Ammophila breviligulata Fern. FACU American Beach Grass

Amorpha californica Nutt. FAC California Indigo-Bush

Amorpha fruticosa L. FACW False Indigo-Bush

Amorpha nana Nutt. FACU Fragrant Indigo-Bush

Ampelopsis arborea (L.) Koehne FAC Peppervine

Ampelopsis cordata Michx. FAC Heart-Leaf Peppervine

Amphicarpaea bracteata (L.) Fern. FACW American Hog-Peanut

Amsinckia spectabilis Fisch. & C.A. Mey. FACU Woolly-Breeches

Anaphalis margaritacea (L.) Benth. & Hook. f. FACU Pearly-Everlasting

Andromeda polifolia L. OBL Bog-Rosemary

Andropogon gerardii Vitman FACU Big Bluestem

Andropogon glomeratus (Walt.) B.S.P. FACW Bushy Bluestem

Andropogon virginicus L. FAC Broom-Sedge

Androsace chamaejasme Wulfen FACU Sw eet-Flow er Rock-Jasmine


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Androsace filiformis Retz. FACW Slender-Stem Rock-Jasmine

Androsace occidentalis Pursh FACU Western Rock-Jasmine

Androsace septentrionalis L. FACU Pygmy-Flow er Rock-Jasmine

Anemone canadensis L. FAC Round-Leaf Thimblew eed

Anemone narcissiflora L. FAC Narcissus-Flow er Thimblew eed

Anemone oregana Gray FACU Blue Windflow er

Anemone parviflora Michx. FACW Small-Flow er Thimblew eed

Anemone piperi Britt. ex Rydb. FACU Piper's Windflow er

Anemopsis californica (Nutt.) Hook. & Arn. OBL Yerba-Mansa

Angelica ampla A. Nels. FACW Giant Angelica

Angelica arguta Nutt. FACW Lyall's Angelica

Angelica dawsonii S. Wats. FACW Daw son's Angelica

Angelica genuflexa Nutt. FACW Kneeling Angelica

Angelica kingii (S. Wats.) Coult. & Rose FACW Basin Angelica

Angelica lucida L. FAC Seacoast Angelica

Angelica pinnata S. Wats. FACW Small-Leaf Angelica

Anoda cristata (L.) Schlecht. FAC Crested Anoda

Antennaria alpina (L.) Gaertn. FACU Alpine Pussytoes

Antennaria arcuata Cronq. FACW Meadow Pussytoes

Antennaria corymbosa E. Nels. FAC Flat-Top Pussytoes

Antennaria media Greene FAC Rocky Mountain Pussytoes

Antennaria neglecta Greene FACU Field Pussytoes

Antennaria pulchella Greene FAC Sierran Pussytoes

Antennaria pulcherrima (Hook.) Greene FACU Show y Pussytoes

Antennaria umbrinella Rydb. FACU Brow n-Bract Pussytoes

Anthemis cotula L. FACU Stinking Chamomile

Anthoxanthum hirtum (Schrank) Y. Schouten & Veldkamp FACW Northern Sw eet Vernal Grass

Anthoxanthum odoratum L. FAC Large Sw eet Vernal Grass

Anticlea elegans (Pursh) Rydb. FACU Mountain False Deathcamas

Anticlea occidentalis (Gray) Zomlefer & Judd FACW Western False Deathcamas

Anticlea vaginata Rydb. FAC Sheathed False Deathcamas

Anticlea virescens (Kunth) Rydb. FACU Green False Deathcamas

Antigonon leptopus Hook. & Arn. FAC Queen's-Jew els

Apiastrum angustifolium Nutt. UPL Mock Parsley

Aplectrum hyemale (Muhl. ex Willd.) Torr. FAC Adam-and-Eve

Apocynum androsaemifolium L. UPL Spreading Dogbane

Apocynum cannabinum L. FAC Indian-Hemp

Aponogeton distachyos L. f. OBL Cape-Pondw eed

Aquilegia caerulea James FACU Colorado Blue Columbine

Aquilegia chrysantha Gray FAC Golden Columbine

Aquilegia eximia Van Houtte ex Planch. OBL Van Houtte's Columbine

Aquilegia formosa Fisch. ex DC. FAC Crimson Columbine

Aquilegia longissima Gray ex. S. Wats. FACW Long-Spur Columbine

Arabidopsis lyrata (L.) O'Kane & Al-Shehbaz FACU Lyre-Leaf Thalecress

Arabis crucisetosa Constance & Rollins FAC Cross-Hair Eared Rockcress

Arabis eschscholtziana Andrz. FACU Pacif ic-Coast Eared Rockcress

Arabis pycnocarpa M. Hopkins FACU Hairy Eared Rockcress

Aralia californica S. Wats. FACW California Spikenard

Aralia nudicaulis L. FACU Wild Sarsaparilla

Aralia racemosa L. FAC American Spikenard

Arctium minus (Hill) Bernh. FACU Lesser Burrdock

Arctostaphylos uva-ursi (L.) Spreng. FACU Red Bearberry

Arctous ruber (Rehd. & Wilson) Nakai FAC Red Torpedoberry

Arenaria lanuginosa (Michx.) Rohrb. FACU Spreading Sandw ort

Arenaria paludicola B.L. Robins. OBL Marsh Sandw ort

Arenaria serpyllifolia L. FACU Thyme-Leaf Sandw ort

Arida arizonica(R.C. Jackson & R.R. Johnson) D. Morgan &

R.L. HartmanFACU Common Desert Tansy-Aster

Arida carnosa (Gray) D. Morgan & R.L. Hartman OBL Shrubby Alkali Desert Tansy-Aster

Aristida dichotoma Michx. FACU Church-Mouse Three-Aw n

Armeria maritima (P. Mill.) Willd. FACU Sea Thrift

Arnica chamissonis Less. FACW Leafy Leopardbane

Arnica fulgens Pursh FACU Shining Leopardbane

Arnica lanceolata Nutt. FACW Lance-Leaf Leopardbane

Arnica latifolia Bong. FAC Daffodil Leopardbane

Arnica longifolia D.C. Eat. FACW Spear-Leaf Leopardbane

Arnica mollis Hook. FAC Cordilleran Leopardbane

Arnica ovata Greene FACW Sticky-Leaf Leopardbane

Arrhenatherum elatius (L.) Beauv. ex J.& K. Presl UPL Tall Oat Grass

Artemisia annua L. UPL Annual Wormw ood

Artemisia biennis Willd. FACW Biennial Wormw ood

Artemisia campestris L. UPL Pacif ic Wormw ood

Artemisia cana Pursh FACU Coaltow n Sagebrush

Artemisia douglasiana Bess. ex Hook. FAC Douglas' Wormw ood

Artemisia ludoviciana Nutt. FACU White Sagebrush

Artemisia norvegica Fries FACU Boreal Sagebrush


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Artemisia papposa Blake & Cronq. FACU Fuzzy Sagebrush

Artemisia potentilloides Gray FAC Five-Finger Chicken-Sage

Artemisia suksdorfii Piper FACU Coastal Wormw ood

Artemisia tilesii Ledeb. FACU Tilesius' Wormw ood

Artemisia vulgaris L. UPL Common Wormw ood

Arthrocnemum subterminale (Parish) Standl. FACW Parish's Glassw ort

Aruncus dioicus (Walt.) Fern. FACU Bride's-Feathers

Arundo donax L. FACW Giant-Reed

Asarum caudatum Lindl. FAC Long-Tail Wild Ginger

Asarum lemmonii S. Wats. OBL Lemmon's Wild Ginger

Asclepias curassavica L. FAC Bloodflow er

Asclepias fascicularis Dcne. FAC Narrow -Leaf Milkw eed

Asclepias incarnata L. OBL Sw amp Milkw eed

Asclepias oenotheroides Cham. & Schlecht. FACU Zizotes Milkw eed

Asclepias pumila (Gray) Vail UPL Low Milkw eed

Asclepias speciosa Torr. FAC Show y Milkw eed

Asclepias subverticillata (Gray) Vail FACU Horsetail Milkw eed

Asclepias syriaca L. FACU Common Milkw eed

Asclepias texana Heller FACU Texas Milkw eed

Asclepias verticillata L. FACU Whorled Milkw eed

Asparagus officinalis L. FACU Asparagus

Asperugo procumbens L. UPL German-Madw ort

Asplenium adiantum-nigrum L. FACU Black Spleenw ort

Asplenium platyneuron (L.) B.S.P. FACU Ebony Spleenw ort

Asplenium trichomanes L. FAC Maidenhair Spleenw ort

Astragalus agrestis Dougl. ex G. Don FAC Cock's-Head

Astragalus alpinus L. FAC Alpine Milk-Vetch

Astragalus americanus (Hook.) M.E. Jones FAC American Milk-Vetch

Astragalus argophyllus Nutt. FACW Silver-Leaf Milk-Vetch

Astragalus bodinii Sheldon FACW Bodin's Milk-Vetch

Astragalus canadensis L. FAC Canadian Milk-Vetch

Astragalus clevelandii Greene FAC Cleveland's Milk-Vetch

Astragalus diaphanus Dougl. ex Hook. FACU Transparent Milk-Vetch

Astragalus diphysus Gray UPL Speckle-Pod Milk-Vetch

Astragalus diversifolius A.Gray FAC Meadow Milkvetch

Astragalus eucosmus B.L. Robins. FACU Elegant Milk-Vetch

Astragalus hornii Gray FAC Horn's Milk-Vetch

Astragalus lemmonii Gray FACW Lemmon's Milk-Vetch

Astragalus lentiginosus Dougl. ex Hook. UPL Freckled Milk-Vetch

Astragalus leptaleus Gray OBL Park Milk-Vetch

Astragalus limnocharis Barneby OBL Cedar-Breaks Milk-Vetch

Astragalus phoenix Barneby FACU Ash Meadow s Milk-Vetch

Astragalus pycnostachyus Gray OBL Marsh Milk-Vetch

Astragalus robbinsii (Oakes) Gray FAC Robbins' Milk-Vetch

Astragalus tener Gray FACW Alkali Milk-Vetch

Athyrium americanum (Butters) Maxon FAC American Alpine Lady Fern

Athyrium angustum (Willd.) K. Presl FAC Northern Lady Fern

Athyrium cyclosorum Rupr. FAC Western Lady Fern

Atriplex amnicola P.G. Wilson FAC Sw amp Saltbush

Atriplex argentea Nutt. FAC Silverscale

Atriplex bonnevillensis C.A. Hanson FACW Bonneville Saltbush

Atriplex cordulata Jepson FAC Heartscale

Atriplex coronata S. Wats. FACW Crow n Saltbush

Atriplex coulteri (Moq.) D. Dietr. FACU Coulter's Saltbush

Atriplex depressa Jepson FAC Rhomboid-Bract Saltbush

Atriplex dioica Raf. FAC Saline Saltbush

Atriplex fruticulosa Jepson FACW Ball Saltbush

Atriplex gmelinii C.A. Mey. ex Bong. FACW Gmelin's Saltbush

Atriplex griffithsii Standl. FACU Griff iths' Saltbush

Atriplex hillmanii (M.E. Jones) Standley FACU Hillman's Silverscale

Atriplex hortensis L. FAC Garden Orache

Atriplex lentiformis (Torr.) S. Wats. FAC Quailbush

Atriplex leucophylla (Moq.) D. Dietr. FAC Beach Saltbush

Atriplex minuscula Standl. FACU Lesser Saltbush

Atriplex mucronata Raf. FACU Crested Saltbush

Atriplex pacifica A. Nels. FACU Davidson's Saltbush

Atriplex parishii S. Wats. FAC Brittlescale

Atriplex parryi S. Wats. FAC Parry's Saltbush

Atriplex patula L. FACW Halberd-Leaf Orache

Atriplex persistens Stutz & Chu FACW Sacramento Saltbush

Atriplex phyllostegia (Torr. ex S. Wats.) S. Wats. FACW Arrow Saltbush

Atriplex polycarpa (Torr.) S. Wats. FACU Cattle-Spinach

Atriplex prostrata Bouchér ex DC. FACW Hastate Orache

Atriplex pusilla (Torr.) S. Wats. FAC Smooth Saltbush

Atriplex rosea L. FACU Tumbling Orache


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Atriplex semibaccata R. Br. FAC Australian Saltbush

Atriplex serenana A. Nels. ex Abrams FAC Bracted Saltbush

Atriplex spinifera J.F. Macbr. FAC Spinescale

Atriplex suberecta I. Verd. FACU Peregrine Saltbush

Atriplex torreyi (S. Wats.) S. Wats. FACU Torrey's Saltbush

Atriplex tridentata Kuntze FACW Basin Saltbush

Atriplex truncata (Torr. ex S. Wats.) Gray FACU Wedge-Leaf Orache

Atriplex tularensis Coville FAC Bakersfield Saltbush

Atriplex vallicola Hoover FACW Lost Hills Saltbush

Atriplex watsonii A. Nels. FACW Watson's Saltbush

Atriplex welshii C.A. Hanson FACU Welsh's Saltbush

Avena sativa L. UPL Oat

Avicennia marina (Forssk.) Vierh. OBL Gray Mangrove

Axonopus compressus (Sw .) Beauv. FACW Broad-Leaf Carpet Grass

Axonopus fissifolius (Raddi) Kuhlm. FAC Narrow -Leaf Carpet Grass

Azolla cristata Kaulfuss OBL Crested Mosquito Fern

Azolla filiculoides Lam. OBL Large Mosquito Fern

Azolla microphylla Kaulfuss OBL Mexican Mosquito Fern

Baccharis glutinosa Pers. FACW Douglas' False Willow

Baccharis neglecta Britt. FAC Roosevelt-Weed

Baccharis salicifolia (Ruiz & Pavón) Pers. FAC Mule's-Fat

Baccharis salicina Torr. & Gray FACW Great Plains False Willow

Baccharis sarothroides Gray FACU Rosinbush

Baccharis sergiloides Gray FACU Squaw 's False Willow

Baccharis wrightii Gray FACU Wright's False Willow

Bacopa eisenii (Kellogg) Pennell OBL Gila River Water-Hyssop

Bacopa monnieri (L.) Pennell OBL Herb-of-Grace

Bacopa repens (Sw .) Wettst. OBL Creeping Water-Hyssop

Bacopa rotundifolia (Michx.) Wettst. OBL Disk Water-Hyssop

Bambusa vulgaris Schrad. ex J.C. Wendl. FACU Feathery Bamboo

Barbarea orthoceras Ledeb. FACW American Yellow -Rocket

Barbarea vulgaris Ait. f . FAC Garden Yellow -Rocket

Barkleyanthus salicifolius (Kunth) H.E. Robins. & Brett. FAC Barkley's-Ragw ort

Bassia hirsuta (L.) Aschers. OBL Hairy Smotherw eed

Bassia hyssopifolia (Pallas) Kuntz FACU Five-Horn Smotherw eed

Bassia scoparia (L.) A.J. Scott FAC Mexican-Firew eed

Batis maritima L. OBL Turtlew eed

Beckmannia syzigachne (Steud.) Fern. OBL American Slough Grass

Berberis thunbergii DC. FACU Japanese Barberry

Berberis vulgaris L. FACU European Barberry

Bergia texana (Hook.) Seub. ex Walp. OBL Texas Bergia

Berula erecta (Huds.) Coville OBL Cut-Leaf-Water-Parsnip

Besseya alpina (Gray) Rydb. FACW Alpine Coraldrops

Besseya plantaginea (James) Rydb. FAC White River Coraldrops

Betula X sandbergii Britt. OBL

Betula glandulosa Michx. OBL Resin Birch

Betula occidentalis Hook. FACW Water Birch

Betula papyrifera Marsh. FAC Paper Birch

Betula pendula Roth FACU European Weeping Birch

Betula pubescens Ehrh. FAC Dow ny Birch

Betula pumila L. OBL Bog Birch

Bidens aurea (Ait.) Sherff OBL Arizona Beggarticks

Bidens beckii Torr. ex Spreng. OBL Beck's Water-Marigold

Bidens bigelovii Gray FACW Bigelow 's Beggarticks

Bidens bipinnata L. FAC Spanish-Needles

Bidens cernua L. OBL Nodding Burr-Marigold

Bidens frondosa L. FACW Devil's-Pitchfork

Bidens laevis (L.) B.S.P. OBL Smooth Beggarticks

Bidens leptocephala Sherff FAC Few -Flow er Beggarticks

Bidens pilosa L. FAC Hairy Beggarticks

Bidens tenuisecta Gray FAC Slim-Lobe Beggarticks

Bidens tripartita L. OBL Three-Lobe Beggarticks

Bidens vulgata Greene FACW Tall Beggarticks

Bistorta bistortoides (Pursh) Small FACW American Bistort

Bistorta vivipara (L.) Delarbre FAC Serpent-Grass

Blechnum spicant (L.) Sm. FAC Deer Fern

Blennosperma bakeri Heiser OBL Baker's Stickyseed

Blennosperma nanum (Hook.) Blake FACW Common Stickyseed

Bloomeria clevelandii S. Wats. FACU San Diego Goldenstars

Boechera collinsii (Fern.) A.& D. Löve FACU

Boechera divaricarpa (A. Nels.) A.& D. Löve FACU

Boechera goodrichii (Welsh) N. Holmgren FACU Goodrich Rockcress

Boechera grahamii (Lehm.) Windham & Al-Shehbaz FACU Boivin's Rockcress

Boechera lemmonii (S. Wats.) W.A. Weber FACU Soldier Rockcress

Boechera stricta (Graham) Al-Shehbaz FACU Canadian Rockcress


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Boehmeria cylindrica (L.) Sw . OBL Small-Spike False Nettle

Boerhavia erecta L. FACU Erect Spiderling

Bolandra californica Gray FACW Sierran False Coolw ort

Bolandra oregana S. Wats. FACW Northern False Coolw ort

Boltonia asteroides (L.) L'Hér. OBL White Doll's Daisy

Borrichia frutescens (L.) DC. FACW Bushy Seaside-Tansy

Bothriochloa barbinodis (Lag.) Herter UPL Cane Beard Grass

Bothriochloa bladhii (Retz.) S.T. Blake FACU Australian Beard Grass

Botrychium ascendens W.H. Wagner FAC Triangle-Lobe Moonw ort

Botrychium crenulatum W.H. Wagner FACW Scalloped Moonw ort

Botrychium hesperium (Maxon & Clausen) W.H. Wagner & Lellinger FACU Western Moonw ort

Botrychium lanceolatum (Gmel.) Angstr. FACW Lance-Leaf Moonw ort

Botrychium lunaria (L.) Sw . FAC Common Moonw ort

Botrychium pinnatum St. John FACU Northeastern Moonw ort

Botrychium simplex E. Hitchc. FAC Least Moonw ort

Botrypus virginianus (L.) Holub FAC Rattlesnake Fern

Bouteloua dactyloides (Nutt.) J.T. Columbus FACU Buffalo Grass

Bowlesia incana Ruiz & Pavón FACU Hoary Bow lesia

Boykinia major Gray FACW Mountain Brookfoam

Boykinia occidentalis Torr. & Gray FAC Coastal Brookfoam

Boykinia rotundifolia Parry FACW Round-Leaf Brookfoam

Brasenia schreberi J.F. Gmel. OBL Watershield

Brassica juncea (L.) Czern. FACU Chinese Mustard

Brassica rapa L. FACU Rape

Braya glabella Richards. FAC Smooth Northern-Rockcress

Braya humilis (C.A. Mey.) B.L. Robins. UPL Alpine Northern-Rockcress

Brickellia californica (Torr. & Gray) Gray FACU California Brickellbush

Brickellia greenei Gray FACU Mountain Brickellbush

Briza media L. FAC Perennial Quaking Grass

Briza minor L. FAC Lesser Quaking Grass

Brodiaea coronaria (Salisb.) Engl. FAC Harvest Cluster-Lily

Brodiaea elegans Hoover FACU Elegant Cluster-Lily

Brodiaea filifolia S. Wats. FAC Thread-Leaf Cluster-Lily

Brodiaea orcuttii (Greene) Baker OBL Orcutt's Cluster-Lily

Brodiaea pallida Hoover FACW Chinese Camp Cluster-Lily

Brodiaea rosea (Greene) Baker FAC Indian Valley Cluster-Lily

Bromidium tandilense (Kuntze) Rúgolo OBL Kennedy's Tropical Bent

Bromus arvensis L. FACU Field Brome

Bromus briziformis Fisch. & C.A. Mey. UPL Rattlesnake Brome

Bromus ciliatus L. FAC Fringed Brome

Bromus hordeaceus L. FACU Soft Brome

Bromus inermis Leyss. FACU Smooth Brome

Bromus madritensis L. UPL Compact Brome

Bromus pubescens Spreng. FACU Hairy Woodland Brome

Bromus richardsonii Link FACU Richardson's Brome

Bromus vulgaris (Hook.) Shear FACU Colombian Brome

Broussonetia papyrifera (L.) L'Hér. ex Vent. FACU Paper-Mulberry

Browallia eludens R.K. Van Devender & P.D. Jenkins FACW Bush-Violet

Buchnera americana L. FAC American Bluehearts

Buddleja davidii Franch. FACU Orange-Eye Butterf ly-Bush

Bulbostylis barbata (Rottb.) C.B. Clarke FACU Water-Grass

Bulbostylis capillaris (L.) Kunth ex C.B. Clarke FACU Dense-Tuft Hair Sedge

Bulbostylis funckii (Steud.) C.B. Clarke FACW Funck's Hair Sedge

Bulbostylis juncoides (Vahl) Kükenth. ex Herter FACW Rush Hair Sedge

Butomus umbellatus L. OBL Greater Flow ering-Rush

Cabomba caroliniana Gray OBL Carolina Fanw ort

Cakile edentula (Bigelow ) Hook. FACU American Searocket

Cakile maritima Scop. FAC European Searocket

Calamagrostis bolanderi Thurb. FACW Bolander's Reed Grass

Calamagrostis breweri Thurb. FACW Short-Hair Reed Grass

Calamagrostis canadensis (Michx.) Beauv. FACW Bluejoint

Calamagrostis nutkaensis (J. Presl) J. Presl ex Steud. FACW Nootka Reed Grass

Calamagrostis scopulorum M.E. Jones FAC Ditch Reed Grass

Calamagrostis stricta (Timm) Koel. FACW Slim-Stem Reed Grass

Calamagrostis tweedyi (Scribn.) Scribn. ex Vasey FAC Cascade Reed Grass

Calandrinia ciliata (Ruiz & Pavón) DC. FACU Fringed Redmaids

Calibrachoa parviflora (Juss.) D'Arcy FACW Seaside-Petunia

Callisia repens (Jacq.) L. FACU Creeping-Inchplant

Callitriche fassettii Schotsman OBL Fassett's Water-Starw ort

Callitriche hermaphroditica L. OBL Autumn Water-Starw ort

Callitriche heterophylla Pursh OBL Greater Water-Starw ort

Callitriche longipedunculata Morong OBL Long-Stock Water-Starw ort

Callitriche marginata Torr. OBL Winged Water-Starw ort

Callitriche palustris L. OBL Vernal Water-Starw ort

Callitriche stagnalis Scop. OBL Pond Water-Starw ort


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Callitriche stenoptera Lansdow n OBL Narrow -Wing Water-Starw ort

Callitriche trochlearis Fassett OBL Effluent Water-Starw ort

Callitropsis nootkatensis (D. Don) Florin ex D.P.Little FAC Alaska-Cedar

Calochortus excavatus Greene FACU Inyo Mariposa-Lily

Calochortus longebarbatus S. Wats. FAC Long-Beard Mariposa-Lily

Calochortus minimus Ow nbey FAC Sierran Mariposa-Lily

Calochortus monanthus Ow nbey FAC Shasta River Mariposa-Lily

Calochortus nudus S. Wats. FAC Naked Mariposa-Lily

Calochortus palmeri S. Wats. FACW Palmer's Mariposa-Lily

Calochortus striatus Parish FACW Alkali Mariposa-Lily

Calochortus uniflorus Hook. & Arn. FACW Monterey Mariposa-Lily

Caltha leptosepala DC. OBL White Marsh-Marigold

Caltha palustris L. OBL Yellow Marsh-Marigold

Calycanthus occidentalis Hook. & Arn. FAC Western Sw eetshrub

Calypso bulbosa (L.) Oakes FAC Fairy-Slipper Orchid

Calyptocarpus vialis Less. FAC Straggler Daisy

Calyptridium roseum S. Wats. FACU

Calystegia sepium (L.) R. Br. FAC Hedge False Bindw eed

Camassia leichtlinii (Baker) S. Wats. FACW Large Camas

Camassia quamash (Pursh) Greene FACW Small Camas

Camelina alyssum (P. Mill.) Thellung FACU Madw ort False Flax

Camelina microcarpa Andrz. ex DC. FACU Little-Pod False Flax

Camelina sativa (L.) Crantz FACU Gold-of-Pleasure

Campanula aparinoides Pursh OBL Marsh Bellf low er

Campanula californica (Kellogg) Heller OBL Sw amp Bellf low er

Campanula parryi Gray FACU Parry's Bellf low er

Campanula rotundifolia L. FACU Bluebell-of-Scotland

Campanula scouleri Hook. ex A. DC. FACU Pale Bellf low er

Campanula uniflora L. FAC Arctic Bellf low er

Campanula w ilkinsiana Greene FACW Wilkins' Bellf low er

Campsis radicans (L.) Seem. ex Bureau FACU Trumpet-Creeper

Canadanthus modestus (Lindl.) Nesom FACW Canada-Aster

Canna flaccida Salisb. OBL Bandanna-of-the-Everglades

Capsella bursa-pastoris (L.) Medik. FACU Shepherd's-Purse

Cardamine angulata Hook. FACW Seaside Bittercress

Cardamine bellidifolia L. FAC Alpine Bittercress

Cardamine breweri S. Wats. FACW Sierran Bittercress

Cardamine constancei Detling FAC Constance's Bittercress

Cardamine cordifolia Gray FACW Large Mountain Bittercress

Cardamine flexuosa With. FACU Woodland Bittercress

Cardamine hirsuta L. FACU Hairy Bittercress

Cardamine macrocarpa Brandeg. FAC Large-Seed Bittercress

Cardamine nuttallii Greene FAC Nuttall's Toothw ort

Cardamine occidentalis (S. Wats.) T.J. How ell FACW Big Western Bittercress

Cardamine oligosperma Nutt. FAC Little Western Bittercress

Cardamine pachystigma (S. Wats.) Rollins FAC Serpentine Bittercress

Cardamine parviflora L. FACW Sand Bittercress

Cardamine pensylvanica Muhl. ex Willd. FACW Quaker Bittercress

Cardamine umbellata Greene FACW Umbell's Bittercress

Cardiospermum halicacabum L. FAC Love-in-a-Puff

Carduus nutans L. FACU Nodding Plumeless-Thistle

Carex X physocarpoides Lepage OBL

Carex aboriginum M.E. Jones OBL Indian Valley Sedge

Carex abrupta Mackenzie FAC Abrupt-Beak Sedge

Carex albonigra Mackenzie FACU Black-and-White-Scale Sedge

Carex alma Bailey OBL Sturdy Sedge

Carex amplifolia Boott OBL Big-Leaf Sedge

Carex angustata Boott FACW Many-Fruit Sedge

Carex aperta Boott FACW Columbian Sedge

Carex aquatilis Wahlenb. OBL Leafy Tussock Sedge

Carex arcta Boott OBL Northern Cluster Sedge

Carex atherodes Spreng. OBL Wheat Sedge

Carex athrostachya Olney FACW Slender-Beak Sedge

Carex atrosquama Mackenzie FACU Lesser Black-Scale Sedge

Carex aurea Nutt. OBL Golden-Fruit Sedge

Carex barbarae Dew ey FAC Santa Barbara Sedge

Carex bebbii Olney ex Fern. OBL Bebb's Sedge

Carex bella Bailey FACU Southw estern Show y Sedge

Carex blanda Dew ey FAC Eastern Woodland Sedge

Carex bolanderi Olney FAC Bolander's Sedge

Carex brevior (Dew ey) Mackenzie FAC Short-Beak Sedge

Carex brunnescens (Pers.) Poir. OBL Brow nish Sedge

Carex buxbaumii Wahlenb. OBL Brow n Bog Sedge

Carex californica Bailey FACW California Sedge

Carex canescens L. OBL Hoary Sedge


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Carex capillaris L. FACW Hair-Like Sedge

Carex capitata L. FAC Capitate Sedge

Carex chordorrhiza Ehrh. ex L. f. OBL Rope-Root Sedge

Carex comosa Boott OBL Bearded Sedge

Carex concinna R. Br. FAC Low Northern Sedge

Carex conoidea Schkuhr ex Willd. FACW Open-Field Sedge

Carex crawei Dew ey FACW Craw e's Sedge

Carex crawfordii Fern. FAC Craw ford's Sedge

Carex cusickii Mackenzie ex Piper & Beattie OBL Cusick's Sedge

Carex davyi Mackenzie FACW Davy's Sedge

Carex densa (Bailey) Bailey OBL Dense Sedge

Carex deweyana Schw ein. FACU Dew ey's Sedge

Carex diandra Schrank OBL Lesser Tussock Sedge

Carex disperma Dew ey OBL Soft-Leaf Sedge

Carex divulsa Stokes FAC Grassland Sedge

Carex douglasii Boott FAC Douglas' Sedge

Carex echinata Murr. OBL Star Sedge

Carex egglestonii Mackenzie FACU Eggleston's Sedge

Carex elynoides Holm FAC Black-Root Sedge

Carex emoryi Dew ey OBL Emory's Sedge

Carex exsiccata Bailey OBL Western Inflated Sedge

Carex feta Bailey FACW Green-Sheath Sedge

Carex fissuricola Mackenzie FACW Cleft Sedge

Carex flava L. OBL Yellow -Green Sedge

Carex foenea Willd. FACU Bronze-Head Oval Sedge

Carex fracta Mackenzie FAC Fragile-Sheath Sedge

Carex frankii Kunth OBL Frank's Sedge

Carex fuliginosa Schkuhr FACU Short-Leaf Sedge

Carex garberi Fern. FACW Elk Sedge

Carex gravida Bailey FACW Heavy Sedge

Carex gynocrates Wormsk. ex Drej. OBL Northern Bog Sedge

Carex gynodynama Olney FAC Olney's Hairy Sedge

Carex hallii Olney FACW Deer Sedge

Carex harfordii Mackenzie OBL Harford's Sedge

Carex hassei Bailey FACW Hasse's Sedge

Carex haydeniana Olney FAC Hayden's Sedge

Carex hendersonii Bailey FAC Henderson's Sedge

Carex heteroneura W. Boott FAC Different-Nerve Sedge

Carex hirtissima W. Boott OBL Fuzzy Sedge

Carex hoodii Boott FAC Hood's Sedge

Carex hystericina Muhl. ex Willd. OBL Porcupine Sedge

Carex idahoa Bailey FACW Idaho Sedge

Carex illota Bailey FACW Small-Head Sedge

Carex incurviformis Mackenzie FAC Coastal-Sand Sedge

Carex infirminervia Naczi FAC

Carex integra Mackenzie OBL Smooth-Beak Sedge

Carex interior Bailey OBL Inland Sedge

Carex interrupta Boeckl. OBL Green-Fruit Sedge

Carex jonesii Bailey FACW Jones' Sedge

Carex kelloggii W. Boott OBL Kellogg's Sedge

Carex klamathensis B.L. Wilson & L.P. Janew ay OBL Klamath Sedge

Carex lachenalii Schkuhr OBL Arctic Hare-Foot Sedge

Carex laeviculmis Meinsh. FACW Smooth-Stem Sedge

Carex lasiocarpa Ehrh. OBL Woolly-Fruit Sedge

Carex lemmonii W. Boott OBL Lemmon's Sedge

Carex lenticularis Michx. OBL Lakeshore Sedge

Carex leporina L. FACW Oval Sedge

Carex leporinella Mackenzie FACW Sierran Hare Sedge

Carex leptalea Wahlenb. OBL Bristly-Stalk Sedge

Carex leptopoda Mackenzie FAC Taper-Fruit Short-Scale Sedge

Carex limosa L. OBL Mud Sedge

Carex livida (Wahlenb.) Willd. OBL Livid Sedge

Carex longii Mackenzie FACW Long's Sedge

Carex luzulifolia W. Boott FACW Little-Leaf Sedge

Carex luzulina Olney OBL Woodrush Sedge

Carex lyngbyei Hornem. OBL Lyngbye's Sedge

Carex macloviana d'Urv. FACW Falkland Island Sedge

Carex macrochaeta C.A. Mey. FACW Alaska Long-Aw n Sedge

Carex magellanica Lam. OBL Boreal-Bog Sedge

Carex mariposana Bailey ex Mackenzie FACW Mariposa Sedge

Carex mckittrickensis P.W. Ball FACW Guadalupe Mountain Sedge

Carex meadii Dew ey OBL Mead's Sedge

Carex media R. Br. FACW Montana Sedge

Carex mendocinensis Olney FACW Mendocino Sedge

Carex mertensii Prescott ex Bong. FAC Mertens' Sedge


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Carex microdonta Torr. & Hook. FAC Little-Tooth Sedge

Carex microglochin Wahlenb. OBL False Uncinia Sedge

Carex micropoda C.A. Mey. FAC Pyrenean Sedge

Carex microptera Mackenzie FAC Small-Wing Sedge

Carex molesta Mackenzie ex Bright FAC Troublesome Sedge

Carex nardina Fries FACU Nard Sedge

Carex nebrascensis Dew ey OBL Nebraska Sedge

Carex nelsonii Mackenzie FAC Nelson's Sedge

Carex nervina Bailey FACW Sierran Sedge

Carex neurophora Mackenzie FACW Alpine Nerve Sedge

Carex nigricans C.A. Mey. FACW Black Alpine Sedge

Carex nova Bailey FAC New Sedge

Carex nudata W. Boott FACW Torrent Sedge

Carex obispoensis Stacey FACW San Luis Obispo Sedge

Carex obnupta Bailey OBL Slough Sedge

Carex pachystachya Cham. ex Steud. FAC Thick-Head Sedge

Carex pallescens L. FAC Pale Sedge

Carex pansa Bailey FACU Sand-Dune Sedge

Carex parryana Dew ey FAC Parry's Sedge

Carex pauciflora Lightf. OBL Few -Flow er Sedge

Carex paysonis Clokey FACU Payson's Sedge

Carex pellita Muhl. ex Willd. OBL Woolly Sedge

Carex pelocarpa F.J. Herm. FAC Dusky-Seed Sedge

Carex pendula Huds. FAC Pendulous Sedge

Carex petasata Dew ey FAC Liddon Sedge

Carex phaeocephala Piper FACU Mountain Hare Sedge

Carex podocarpa R. Br. FAC Short-Stalk Sedge

Carex praeceptorum Mackenzie OBL Teacher's Sedge

Carex praegracilis W. Boott FACW Clustered Field Sedge

Carex praticola Rydb. FACW Northern Meadow Sedge

Carex preslii Steud. FACU Presl's Sedge

Carex raynoldsii Dew ey FACU Raynolds' Sedge

Carex retrorsa Schw ein. OBL Retrorse Sedge

Carex rosea Schkuhr ex Willd. FAC Rosy Sedge

Carex rostrata Stokes OBL Sw ollen Beaked Sedge

Carex rupestris All. FACU Curly Sedge

Carex saliniformis Mackenzie FACW Santa Cruz Sedge

Carex sartwelliana Olney OBL Yosemite Sedge

Carex sartwellii Dew ey OBL Sartw ell's Sedge

Carex saxatilis L. OBL Russet Sedge

Carex scabriuscula Mackenzie FACW Cascade Sedge

Carex schottii Dew ey OBL Schott's Sedge

Carex scirpoidea Michx. FAC Canadian Single-Spike Sedge

Carex scoparia Schkuhr ex Willd. FACW Pointed Broom Sedge

Carex scopulorum Holm FACW Holm's Rocky Mountain Sedge

Carex senta Boott OBL Western Rough Sedge

Carex serratodens W. Boott FACW Saw -Tooth Sedge

Carex sheldonii Mackenzie OBL Sheldon's Sedge

Carex siccata Dew ey UPL Dry-Spike Sedge

Carex simulata Mackenzie OBL Analogue Sedge

Carex spectabilis Dew ey FACW Northw estern Show y Sedge

Carex specuicola J.T. How ell OBL Navajo Sedge

Carex spissa Bailey FAC San Diego Sedge

Carex sprengelii Dew ey ex Spreng. FAC Long-Beak Sedge

Carex stevenii (Holm) Kalela FAC Steven's Sedge

Carex stipata Muhl. ex Willd. OBL Stalk-Grain Sedge

Carex subbracteata Mackenzie FACW Small-Bract Sedge

Carex suberecta (Olney) Britt. OBL Prairie Straw Sedge

Carex subfusca W. Boott FAC Rusty Sedge

Carex subnigricans Stacey FAC Dark Mountain Sedge

Carex sychnocephala Carey FACW Many-Head Sedge

Carex tenera Dew ey FACW Quill Sedge

Carex tenuiflora Wahlenb. OBL Sparse-Flow er Sedge

Carex thurberi Dew ey FAC Thurber's Sedge

Carex tiogana D. Taylor & J. Mastrogiuseppe, sp. nov. ined. FACW Mono Sedge

Carex torreyi Tuckerman FAC Torrey's Sedge

Carex tumulicola Mackenzie FACU Foothill Sedge

Carex turbinata Liebm. FACU Turban Sedge

Carex unilateralis Mackenzie FACW One-Sided Sedge

Carex utriculata Boott OBL Northw est Territory Sedge

Carex vallicola Dew ey FAC Valley Sedge

Carex vernacula Bailey FAC Native Sedge

Carex vesicaria L. OBL Lesser Bladder Sedge

Carex viridula Michx. OBL Little Green Sedge

Carex vulpinoidea Michx. OBL Common Fox Sedge


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Carpobrotus chilensis (Molina) N.E. Br. FACU Baby Sun-Rose

Cartrema americana (L.) Raf. FAC Devilw ood

Carum carvi L. FACU Caraw ay

Carya illinoinensis (Wangenh.) K. Koch FAC Pecan

Cassiope mertensiana (Bong.) G. Don FACU Western Moss-Heather

Cassiope tetragona (L.) D. Don FACU White Arctic Mountain-Heather

Castilleja ambigua Hook. & Arn. FACW Johnnynip

Castilleja campestris (Benth.) Chuang & Heckard FACW Vernal-Pool Indian-Paintbrush

Castilleja lemmonii Gray FACW Lemmon's Indian-Paintbrush

Castilleja lineata Greene FACW Marsh-Meadow Indian-Paintbrush

Castilleja miniata Dougl. ex Hook. FACW Great Red Indian-Paintbrush

Castilleja minor (Gray) Gray OBL Alkali Indian-Paintbrush

Castilleja mogollonica Pennell FACW Mogollon Indian-Paintbrush

Castilleja occidentalis Torr. FAC Pale-Yellow Indian-Paintbrush

Castilleja parviflora Bong. FAC Small-Flow er Indian-Paintbrush

Castilleja rhexiifolia Rydb. FAC Rosy Indian-Paintbrush

Castilleja salsuginosa N. Holmgren FAC Monte Neva Indian-Paintbrush

Castilleja septentrionalis Lindl. FACU Labrador Indian-Paintbrush

Castilleja suksdorfii Gray FACW Suksdorf 's Indian-Paintbrush

Castilleja tenuis (Heller) Chuang & Heckard FAC Hairy Indian-Paintbrush

Casuarina equisetifolia L. FACU Beach She-Oak

Catabrosa aquatica (L.) Beauv. OBL Water Whorl Grass

Catalpa bignonioides Walt. UPL Southern Catalpa

Catalpa speciosa Warder ex Engelm. FAC Northern Catalpa

Catharanthus roseus (L.) G. Don UPL Madagascar-Periw inkle

Celastrus scandens L. FACU American Bittersw eet

Celtis laevigata Willd. FAC Sugar-Berry

Celtis occidentalis L. FAC Common Hackberry

Celtis reticulata Torr. FAC Net-Leaf Hackberry

Cenchrus americanus (L.) O. Morrone UPL Pearl-Millet

Cenchrus ciliaris L. UPL Buffel Grass

Cenchrus clandestinus (Hochst. ex Chiov.) O. Morrone FACU Kikuyu Grass

Cenchrus echinatus L. FACU Southern Sandburr

Cenchrus longispinus (Hack.) Fern. UPL Innocent-Weed

Cenchrus myosuroides Kunth FACU Big Sandburr

Cenchrus polystachios (L.) O. Morrone FAC Mission Grass

Cenchrus purpureus (Schumacher) O. Morrone FACU Elephant Grass

Centaurea X moncktonii C.E. Britton FACU

Centaurea cyanus L. FACU Garden Cornflow er

Centaurea jacea L. FACU Brow n-Ray Knapw eed

Centaurium erythraea Rafn FAC European Centaury

Centaurium pulchellum (Sw .) Hayek ex Hand.-Maz. et al. FACU Branched Centaury

Centaurium tenuiflorum (Hoffmannsegg & Link) Fritsch FACW Slender Centaury

Centipeda minima (L.) A. Braun & Aschers. FAC Spreading-Sneezew eed

Centromadia fitchii (Gray) Greene FACU Fitch's False Tarplant

Centromadia parryi (Greene) Greene FACW Parry's False Tarplant

Centromadia pungens (Hook. & Arn.) Greene FAC Pungent False Tarplant

Cephalanthus occidentalis L. OBL Common Buttonbush

Cerastium arvense L. FACU Field Mouse-Ear Chickw eed

Cerastium axillare Correll FACU Trans-Pecos Mouse-Ear Chickw eed

Cerastium beeringianum Cham. & Schlecht. FACU Bering Sea Mouse-Ear Chickw eed

Cerastium brachypodum (Engelm. ex Gray) B.L. Robins. FAC Short-Stalk Mouse-Ear Chickw eed

Cerastium fontanum Baumg. FACU Common Mouse-Ear Chickw eed

Cerastium glomeratum Thuill. UPL Sticky Mouse-Ear Chickw eed

Cerastium nutans Raf. FACU Nodding Mouse-Ear Chickw eed

Ceratophyllum demersum L. OBL Coon's-Tail

Ceratopteris thalictroides (L.) Brongn. OBL Watersprite

Cercis canadensis L. UPL Redbud

Cestrum nocturnum L. UPL Night Flow ering-Jassamine

Chaerophyllum tainturieri Hook. FAC Hairy-Fruit Chervil

Chamaecrista fasciculata (Michx.) Greene FACU Sleepingplant

Chamaecyparis lawsoniana (A. Murr.) Parl. FACU Port Orford-Cedar

Chamaenerion angustifolium (L.) Scop. FACU Narrow -Leaf Firew eed

Chamaenerion latifolium (L.) Sw eet FACW Broad-Leaf Firew eed

Chasmanthium latifolium (Michx.) Yates FAC Indian Wood-Oats

Chelidonium majus L. FACU Greater Celandine

Chenopodium album L. FACU Lamb's-Quarters

Chenopodium chenopodioides (L.) Aellen FACW Low Goosefoot

Chenopodium foliosum (Moench) Aschers. FACU Leafy Goosefoot

Chenopodium fremontii S. Wats. FACU Fremont's Goosefoot

Chenopodium glaucum L. FAC Oak-Leaf Goosefoot

Chenopodium leptophyllum (Moq.) Nutt. ex S. Wats. FACU Narrow -Leaf Goosefoot

Chenopodium macrospermum Hook. f. FACW Large-Seed Goosefoot

Chenopodium murale L. FACU Nettle-Leaf Goosefoot

Chenopodium rubrum L. FACW Red Goosefoot


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Chilopsis linearis (Cav.) Sw eet FAC Desert-Willow

Chionophila jamesii Benth. FACU Rocky Mountain Snow lover

Chloracantha spinosa (Benth.) Nesom FAC Mexican-Devilw eed

Chloris gayana Kunth FACU Rhodes Grass

Chloris virgata Sw . FACU Feather Windmill Grass

Chloropyron maritimum (Benth.) Heller OBL Saltmarsh Salt-Bird's-Beak

Chloropyron molle (Gray) Heller OBL Soft Salt-Bird's-Beak

Chloropyron palmatum (Ferris) Tank & J.M. Egger OBL Palm-Bract Salt-Bird's-Beak

Chloropyron tecopense (Munz & Roos) Tank & J.M. Egger FACW Tecopa Salt-Bird's-Beak

Chrysosplenium glechomifolium Nutt. OBL Pacif ic Golden-Saxifrage

Chrysosplenium tetrandrum (Lund ex Malmgr.) Th. Fries OBL Northern Golden-Saxifrage

Cicendia quadrangularis (Lam.) Griseb. FAC Oregon Timw ort

Cichorium intybus L. FACU Chicory

Cicuta bulbifera L. OBL Bulblet-Bearing Water-Hemlock

Cicuta douglasii (DC.) Coult. & Rose OBL Western Water-Hemlock

Cicuta maculata L. OBL Spotted Water-Hemlock

Cinna bolanderi Scribn. FACW Bolander's Wood-Reed

Cinna latifolia (Trev. ex Goepp.) Griseb. FACW Slender Wood-Reed

Cinnamomum camphora (L.) J. Presl UPL Camphortree

Circaea alpina L. FAC Small Enchanter's-Nightshade

Cirsium andrewsii (Gray) Jepson FAC Franciscan Thistle

Cirsium arizonicum (Gray) Petrak FACU Arizona Thistle

Cirsium arvense (L.) Scop. FACU Canadian Thistle

Cirsium crassicaule (Greene) Jepson OBL Slough Thistle

Cirsium douglasii DC. OBL Douglas' Thistle

Cirsium edule Nutt. FAC Edible Thistle

Cirsium flodmanii (Rydb.) Arthur FAC Flodman's Thistle

Cirsium foliosum (Hook.) DC. FAC Elk Thistle

Cirsium fontinale (Greene) Jepson OBL Fountain Thistle

Cirsium hydrophilum (Greene) Jepson OBL Suisun Thistle

Cirsium mohavense (Greene) Petrak FACU Mojave Thistle

Cirsium nuttallii DC. FAC Nuttall's Thistle

Cirsium parryi (Gray) Petrak FACW Parry's Thistle

Cirsium scariosum Nutt. FAC Meadow Thistle

Cirsium tracyi (Rydb.) Petrak FACU Tracy's Thistle

Cirsium undulatum (Nutt.) Spreng. FACU Wavy-Leaf Thistle

Cirsium vinaceum (Woot. & Standl.) Woot. & Standl. OBL Sacramento Mountain Thistle

Cirsium vulgare (Savi) Ten. FACU Bull Thistle

Cirsium wrightii Gray OBL Wright's Thistle

Cissus trifoliata (L.) L. UPL Sorrelvine

Cistanthe ambigua (S. Wats.) Hershkovitz FAC Desert Pussypaw s

Citrullus lanatus (Thunb.) Matsumura & Nakai UPL Watermelon

Cladium californicum (S. Wats.) O'Neill OBL California Saw -Grass

Cladium mariscus (L.) Pohl OBL Sw amp Saw -Grass

Claytonia cordifolia S. Wats. FAC Heart-Leaf Springbeauty

Claytonia gypsophiloides Fisch. & C.A. Mey. FACU Gypsum Springbeauty

Claytonia lanceolata Pall. ex Pursh FAC Lance-Leaf Springbeauty

Claytonia megarhiza (Gray) Parry ex S. Wats. FACU Alpine Springbeauty

Claytonia multiscapa Rydb. FAC Many-Stem Springbeauty

Claytonia nevadensis S. Wats. FAC Sierran Springbeauty

Claytonia palustris Sw anson & Kelley FACW Jonesville Springbeauty

Claytonia parviflora Dougl. ex Hook. FACU Streambank Springbeauty

Claytonia perfoliata Donn ex Willd. FAC Miner's-Lettuce

Claytonia sibirica L. FAC Siberian Springbeauty

Claytonia washingtoniana (Suksdorf) Suksdorf FACU Washington Springbeauty

Clematis crispa L. FACW Sw amp Leather-Flow er

Clematis ligusticifolia Nutt. FAC Deciduous Traveler's-Joy

Clematis pitcheri Torr. & Gray FACU Bluebill

Clematis terniflora DC. FACU Sw eet Autumn Virgin's-Bow er

Clematis vitalba L. FAC Evergreen Traveler's-Joy

Cleomella brevipes S. Wats. FACW Short-Stalk Stinkw eed

Cleomella longipes Torr. FACU Chiricahua Mountain Stinkw eed

Cleomella parviflora Gray FACW Small-Flow er Stinkw eed

Cleomella plocasperma S. Wats. FACW Alkali Stinkw eed

Clinopodium arkansanum (Nutt.) House FAC Limestone Wild Basil

Clinopodium douglasii (Benth.) Kuntze FACU Oregon-Tea

Clitoria mariana L. FACU Atlantic Pigeonw ings

Cocculus carolinus (L.) DC. FACU Carolina Coralbead

Coeloglossum viride (L.) Hartman FAC Long-Bract Frog Orchid

Coix lacryma-jobi L. FACW Job's-Tears

Coleanthus subtilis (Tratt.) Seidel OBL Moss Grass

Coleataenia rigidula (Bosc ex Nees) LeBlond FACW Red-Top Cut-Throat Grass

Collinsia tinctoria Hartw . ex Benth. FACU Tinctureplant

Collomia linearis Nutt. FACU Narrow -Leaf Mountain-Trumpet

Collomia rawsoniana Greene FACU Flaming Mountain-Trumpet


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Comandra umbellata (L.) Nutt. UPL Bastard-Toadflax

Comarum palustre L. OBL Purple Marshlocks

Comastoma tenellum (Rottb.) Toyokuni FACW Samiland-Gentian

Commelina benghalensis L. FACU Jio

Commelina communis L. FAC Asiatic Dayflow er

Commelina erecta L. FACU White-Mouth Dayflow er

Conioselinum pacificum (S. Wats.) Coult. & Rose FAC Pacif ic Hemlock-Parsley

Conioselinum scopulorum (Gray) Coult. & Rose FACW Rocky Mountain Hemlock-Parsley

Conium maculatum L. FACW Poison-Hemlock

Conoclinium dissectum Gray FACU Pinked Mistf low er

Convolvulus equitans Benth. FACU Texas Bindw eed

Cooperia chlorosolen Herbert FACU Evening Rain-Lily

Coptis laciniata Gray FAC Oregon Goldthread

Corallorhiza maculata (Raf.) Raf. UPL Summer Coralroot

Corallorhiza striata Lindl. FACU Hooded Coralroot

Corallorhiza trifida Chatelain FAC Yellow Coralroot

Corallorhiza w isteriana Conrad FAC Spring Coralroot

Cordylanthus eremicus (Coville & Morton) Munz FACW Desert Bird's-Beak

Cordylanthus ramosus Nutt. ex Benth. FACU Bushy Bird's-Beak

Coreopsis lanceolata L. FACU Lance-Leaf Tickseed

Coreopsis tinctoria Nutt. FACU Golden Tickseed

Corispermum americanum (Nutt.) Nutt. FACU American Bugseed

Corispermum hyssopifolium L. FACU Hyssop-Leaf Bugseed

Corispermum welshii Mosyakin FACU Welsh's Bugseed

Cornus alba L. FACW Red Osier

Cornus canadensis L. FAC Canadian Bunchberry

Cornus glabrata Benth. FACW Smooth-Leaf Dogw ood

Cornus nuttallii Audubon ex Torr. & Gray FACU Pacif ic Flow ering Dogw ood

Cornus sessilis Torr. ex Dur. FAC Black-Fruit Dogw ood

Cortaderia jubata (Lem. ex Carr.) Stapf FACU Uruguayan Pampas Grass

Cortaderia selloana (J.A. & J.H. Schultes) Aschers. & Graebn. FACU Selloa Pampus Grass

Corydalis caseana Gray FACW Sierran Fumew ort

Corylus avellana L. FACU Common Filbert

Corylus cornuta Marsh. FACU Beaked Hazelnut

Corymbia citriodora (Hook.) K.D. Hill & L.A. Johnson FACU Lemon-Scented Ghost-Gum

Cosmos bipinnatus Cav. FACW Garden Cosmos

Cosmos parviflorus (Jacq.) Pers. FACU Southw estern Cosmos

Cosmos sulphureus Cav. FACU Sulphur Cosmos

Cotula australis (Sieber ex Spreng.) Hook. f. FAC Australian Water-Buttons

Cotula coronopifolia L. OBL Common Brassbuttons

Cotula mexicana (DC.) Cabrera UPL Mexican Brassbuttons

Crassocephalum crepidioides (Benth.) S. Moore FACU Red-Flow er Ragleaf

Crassula aquatica (L.) Schoenl. OBL Water Pygmyw eed

Crassula connata (Ruiz & Pavón) Berger FAC Sand Pygmyw eed

Crassula solieri (C. Gay) Meigen OBL Smooth-Seed Pygmyw eed

Crassula tillaea Lester-Garland FACU Moss Pygmyw eed

Crataegus douglasii Lindl. FAC Black Haw thorn

Crataegus erythropoda Ashe FAC Cerro Haw thorn

Crataegus gaylussacia Heller FAC Suksdorf 's Haw thorn

Crataegus monogyna Jacq. FAC English Haw thorn

Crataegus rivularis Nutt. FAC River Haw thorn

Crataegus saligna Greene FAC Willow Haw thorn

Crepis capillaris (L.) Wallr. FACU Smooth Haw k's-Beard

Crepis runcinata (James) Torr. & Gray FACU Fiddle-Leaf Haw k's-Beard

Cressa truxillensis Kunth FACW Spreading Alkali-Weed

Crocosmia X crocosmiiflora (V. Lemoine) N.E. Br. FACU

Crotalaria capensis Jacq. FACU Cape Rattlebox

Crypsis alopecuroides (Piller & Mitterp.) Schrad. OBL Fox-Tail Prickle Grass

Crypsis schoenoides (L.) Lam. FACW Sw amp Prickle Grass

Crypsis vaginiflora (Forssk.) Opiz OBL African Prickle Grass

Cryptantha crinita Greene FACU Sacramento Cat's-Eye

Cryptogramma stelleri (Gmel.) Prantl FACU Fragile Rockbrake

Cyclachaena xanthiifolia (Nutt.) Fresen. FAC Carelessw eed

Cycloloma atriplicifolium (Spreng.) Coult. FACU Winged-Pigw eed

Cyclospermum leptophyllum (Pers.) Sprague ex Britt. & Wilson FACU Marsh-Parsley

Cynanchum laeve (Michx.) Pers. FAC Honeyvine

Cynodon dactylon (L.) Pers. FACU Bermuda Grass

Cynoglossum officinale L. FACU Gypsy-Flow er

Cynosurus cristatus L. FACU Crested Dog's-Tail Grass

Cyperus acuminatus Torr. & Hook. ex Torr. OBL Taper-Tip Flat Sedge

Cyperus aggregatus (Willd.) Endl. FAC Inf lated-Scale Flat Sedge

Cyperus amabilis Vahl FACU Foothill Flat Sedge

Cyperus bipartitus Torr. OBL Shining Flat Sedge

Cyperus croceus Vahl FAC Baldw in's Flat Sedge

Cyperus difformis L. OBL Variable Flat Sedge


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Cyperus elegans L. FACW Royal Flat Sedge

Cyperus eragrostis Lam. FACW Tall Flat Sedge

Cyperus erythrorhizos Muhl. OBL Red-Root Flat Sedge

Cyperus esculentus L. FACW Chufa

Cyperus fendlerianus Boeckl. FAC Fendler's Flat Sedge

Cyperus flavescens L. OBL Yellow Flat Sedge

Cyperus flavicomus Michx. FAC White-Edge Flat Sedge

Cyperus fuscus L. FAC Galingale

Cyperus gracilis R. Br. FAC Slimjim Flat Sedge

Cyperus hermaphroditus (Jacq.) Standl. FAC Hermaphrodite Flat Sedge

Cyperus involucratus Rottb. FACW Alternate-Leaf Flat Sedge

Cyperus iria L. FACW Ricefield Flat Sedge

Cyperus laevigatus L. FACW Smooth Flat Sedge

Cyperus lupulinus (Spreng.) Marcks FACU Great Plains Flat Sedge

Cyperus mutisii (Kunth) Griseb. FACU Mutis' Flat Sedge

Cyperus niger Ruiz & Pavón FACW Black Flat Sedge

Cyperus odoratus L. FACW Rusty Flat Sedge

Cyperus onerosus M.C. Johnston FACW Plains Flat Sedge

Cyperus owanii Boeckl. FAC Ow an's Flat Sedge

Cyperus papyrus L. OBL Papyrus Flat Sedge

Cyperus parishii Britt. FACW Parish's Flat Sedge

Cyperus retrorsus Chapman FAC Pine-Barren Flat Sedge

Cyperus rotundus L. FAC Purple Flat Sedge

Cyperus schweinitzii Torr. FAC Sand Flat Sedge

Cyperus seslerioides Kunth FAC Texas Flat Sedge

Cyperus squarrosus L. OBL Aw ned Flat Sedge

Cyperus strigosus L. FACW Straw -Color Flat Sedge

Cyperus tetragonus Ell. FACU Four-Angle Flat Sedge

Cyperus virens Michx. FACW Green Flat Sedge

Cypripedium californicum Gray OBL California Lady's-Slipper

Cypripedium fasciculatum Kellogg ex S. Wats. FACU Clustered Lady's-Slipper

Cypripedium montanum Dougl. ex Lindl. FACU Mountain Lady's-Slipper

Cypripedium parviflorum Salisb. FACW Yellow Lady's-Slipper

Cypselea humifusa Turp. FACW Panal

Cyrtorhyncha cymbalaria (Pursh) Britt. OBL Alkali Buttercup

Cyrtorhyncha ranunculina Nutt. FACU Tadpole Alkali Buttercup

Cystopteris bulbifera (L.) Bernh. FAC Bulblet Bladder Fern

Cystopteris fragilis (L.) Bernh. FACU Brittle Bladder Fern

Cystopteris montana (Lam.) Bernh. ex Desv. FAC Mountain Bladder Fern

Dactylis glomerata L. FACU Orchard Grass

Dalea leporina (Ait.) Bullock UPL Fox-Tail Prairie-Clover

Damasonium californicum Torr. OBL Fringed-Water-Plantain

Danthonia californica Boland. FAC California Wild Oat Grass

Danthonia decumbens (L.) DC. FAC Common Heath Grass

Danthonia intermedia Vasey FACU Timber Wild Oat Grass

Darlingtonia californica Torr. OBL Cobraplant

Darmera peltata (Torr. ex Benth.) Voss OBL Indian-Rhubarb

Dasiphora fruticosa (L.) Rydb. FAC Golden-Hardhack

Datisca glomerata (K. Presl) Baill. FACW Durango-Root

Datura wrightii Regel UPL Sacred Thorn-Apple

Daucus carota L. UPL Queen Anne's-Lace

Deinandra fasciculata (DC.) Greene FACU Clustered Moonshine-Daisy

Deinandra paniculata (Gray) A. Davids. & Moxley FACU San Diego Moonshine-Daisy

Delosperma litorale (Kensit) L. Bolus FACU Delosperma

Delphinium X burkei Greene (pro sp.) FACU

Delphinium X occidentale (S. Wats.) S. Wats. (pro sp.) FACU

Delphinium andesicola Ew an FACU Chiricahua Mountain Larkspur

Delphinium barbeyi (Huth) Huth FAC Subalpine Larkspur

Delphinium californicum Torr. & Gray FACU California Coast Larkspur

Delphinium geraniifolium Rydb. FAC Clark Valley Larkspur

Delphinium glaucescens Rydb. FACU Electric Peak Larkspur

Delphinium glaucum S. Wats. FACW Tow er Larkspur

Delphinium hesperium Gray FAC Foothill Larkspur

Delphinium multiplex (Ew an) C.L. Hitchc. FAC Kittitas Larkspur

Delphinium nuttallianum Pritz. ex Walp. FAC Tw o-Lobe Larkspur

Delphinium nuttallii Gray FACU Upland Larkspur

Delphinium polycladon Eastw . FACW Mountain-Marsh Larkspur

Delphinium recurvatum Greene FACU Byron Larkspur

Delphinium sapellonis Cockerell FAC Sapello Canyon Larkspur

Delphinium scopulorum Gray FAC Rocky Mountain Larkspur

Delphinium uliginosum Curran OBL Sw amp Larkspur

Deschampsia brevifolia R. Br. FACW Short-Leaf Hair Grass

Deschampsia caespitosa (L.) Beauv. FACW Tufted Hair Grass

Deschampsia danthonioides (Trin.) Munro FACW Annual Hair Grass

Deschampsia elongata (Hook.) Munro FACW Slender Hair Grass


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Descurainia adenophora (Woot. & Standl.) O.E. Schulz FACU

Descurainia incana (Bernh. ex Fisch. & C.A. Mey.) Dorn FACU Mountain Tansy-Mustard

Desmanthus illinoensis (Michx.) MacM. ex B.L. Robins. & Fern. FACU Prairie Bundle-Flow er

Desmanthus virgatus (L.) Willd. FACU Wild Tantan

Dianthus armeria L. UPL Deptford Pink

Dianthus deltoides L. FAC Maiden Pink

Dicentra formosa (Andrew s) Walp. FACU Pacif ic Bleedinghearts

Dichanthelium acuminatum (Sw .) Gould & C.A. Clark FAC Tapered Rosette Grass

Dichanthelium leucothrix (Nash) Freckmann FACW Rough Rosette Grass

Dichanthelium oligosanthes (J.A. Schultes) Gould FACU Heller's Rosette Grass

Dichanthelium sphaerocarpon (Ell.) Gould FACU Round-Seed Rosette Grass

Dichelostemma capitatum (Benth.) Wood FACU Bluedicks

Dichondra micrantha Urban FACW Asian Pony's-Foot

Dichondra sericea Sw . FACU Silver-Leaf Pony's-Foot

Didiplis diandra (Nutt. ex DC.) Wood OBL Water-Purslane

Dieteria bigelovii (Gray) D. Morgan & R.L. Hartman FACW Bigelow 's False Tansy-Aster

Dieteria canescens (Pursh) Nutt. UPL Hoar False Tansy-Aster

Digitalis purpurea L. FACU Purple Foxglove

Digitaria ciliaris (Retz.) Koel. FACU Southern Crab Grass

Digitaria eriantha Steud. FACU Pangola Grass

Digitaria insularis (L.) Mez ex Ekman UPL Sour Grass

Digitaria ischaemum (Schreb. ex Schw eig.) Schreb. ex Muhl. FACU Smooth Crab Grass

Digitaria sanguinalis (L.) Scop. FACU Hairy Crab Grass

Dinebra nealleyi (Vasey) P.M. Peterson & N. Snow FACW Nealley's Viper Grass

Dinebra panicea (Retz.) P.M. Peterson & N. Snow FACW Needle Viper Grass

Dinebra viscida (Scribn.) P.M. Peterson & N. Snow FACU Sonoran Viper Grass

Diodia teres Walt. FACU Poorjoe

Diodia virginiana L. FACW Virginia Buttonw eed

Diospyros virginiana L. FAC Common Persimmon

Diphasiastrum alpinum (L.) Holub FAC Alpine Creeping-Cedar

Diphasiastrum complanatum (L.) Holub FAC Trailing Creeping-Cedar

Diplachne fusca (L.) Beauv.ex Roemer & J.A. Schultes FACW Bearded Sprangletop

Diplacus aurantiacus (W. Curtis) Jepson FACU Orange Bush-Monkey-Flow er

Diplacus parviflorus Greene FACU Island Bush-Monkey-Flow er

Dipsacus fullonum L. FAC Fuller's Teasel

Dipsacus laciniatus L. FACU Cut-Leaf Teasel

Dirca occidentalis Gray FAC Western Leatherw ood

Distichlis littoralis (Engelm.) H.L. Bell & Columbus OBL Shore Grass

Distichlis spicata (L.) Greene FAC Coastal Salt Grass

Dodecatheon alpinum (Gray) Greene FACW Alpine Shootingstar

Dodecatheon conjugens Greene FACU Bonneville Shootingstar

Dodecatheon dentatum Hook. FACW White Shootingstar

Dodecatheon jeffreyi Van Houtte FACW Tall Mountain Shootingstar

Dodecatheon poeticum Henderson FAC Poet's Shootingstar

Dodecatheon pulchellum (Raf.) Merr. FACW Dark-Throat Shootingstar

Dodecatheon redolens (Hall) H.J. Thompson OBL Scented Shootingstar

Dodecatheon subalpinum Eastw . FACU Sierran Shootingstar

Dodonaea viscosa Jacq. FACU Florida Hopbush

Dopatrium junceum (Roxb.) Buch.-Ham. ex Benth. OBL Horsefly's-Eye

Downingia bacigalupii Weiler OBL Bach's Calico-Flow er

Downingia bella Hoover OBL Hoover's Calico-Flow er

Downingia bicornuta Gray OBL Double-Horn Calico-Flow er

Downingia concolor Greene OBL Maroon-Spot Calico-Flow er

Downingia cuspidata (Greene) Greene ex Jepson OBL Toothed Calico-Flow er

Downingia elegans (Dougl. ex Lindl.) Torr. OBL Elegant Calico-Flow er

Downingia insignis Greene OBL Harlequin Calico-Flow er

Downingia laeta (Greene) Greene OBL Great Basin Calico-Flow er

Downingia montana Greene OBL Sierran Calico-Flow er

Downingia ornatissima Greene OBL Folded Calico-Flow er

Downingia pulchella (Lindl.) Torr. OBL Flat-Face Calico-Flow er

Downingia pulcherrima M.E. Peck FACW

Downingia pusilla (G. Don) Torr. OBL Dw arf Calico-Flow er

Downingia w illamettensis M.E. Peck OBL Willamette Calico-Flow er

Downingia yina Applegate OBL Cascade Calico-Flow er

Draba albertina Greene FAC Slender Whitlow -Grass

Draba aurea Vahl ex Hornem. FACU Golden Whitlow -Grass

Draba helleriana Greene FAC Heller's Whitlow -Grass

Draba lonchocarpa Rydb. FACU Lance-Pod Whitlow -Grass

Draba paucifructa Clokey & C.L. Hitchc. FAC Charleston Mountain Whitlow -Grass

Draba praealta Greene FACU Tall Whitlow -Grass

Draba spectabilis Greene FACU Show y Whitlow -Grass

Draba stenoloba Ledeb. FACU Alaska Whitlow -Grass

Dracocephalum parviflorum Nutt. FACU American Dragonhead

Dracopis amplexicaulis (Vahl) Cass. FACW Clasping-Coneflow er

Drosera X hybrida Macfarlane (pro sp.) OBL


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Drosera X obovata Mert. & Koch (pro sp.) OBL

Drosera aliciae Raym.-Hamet OBL Australian Sundew

Drosera anglica Huds. OBL English Sundew

Drosera capensis L. OBL Cape Sundew

Drosera intermedia Hayne OBL Spoon-Leaf Sundew

Drosera rotundifolia L. OBL Round-Leaf Sundew

Drosera tracyi Macfarlane OBL Tracy's Sundew

Dryas ajanensis Juz. UPL Eight-Petal Mountain-Avens

Dryas drummondii Richards. ex Hook. FACU Yellow Mountain-Avens

Drymaria pachyphylla Woot. & Standl. FACU Thick-Leaf Drymary

Drymocallis arguta (Pursh) Rydb. FACU Tall Woodbeauty

Drymocallis arizonica Rydb. FAC Arizona Woodbeauty

Drymocallis campanulata (C.L. Hitchc.) Ertter FAC John Day Valley Woodbeauty

Drymocallis convallaria (Rydb.) Rydb. FACU Cream Woodbeauty

Drymocallis cuneifolia Rydb. FAC Wedge-Leaf Woodbeauty

Drymocallis glabrata Rydb. FAC Idaho Woodbeauty

Drymocallis glandulosa (Lindl.) Rydb. FAC Sticky Woodbeauty

Drymocallis hansenii (Greene) Rydb. FAC Yosemite Woodbeauty

Drymocallis lactea (Greene) Rydb. FAC Sierran Woodbeauty

Drymocallis micropetala Rydb. FAC Little-Petal Woodbeauty

Drymocallis pseudorupestris (Rydb.) Rydb. FAC

Drymocallis rhomboidea (Rydb.) Rydb. FAC Sticky Woodbeauty

Dryopteris carthusiana (Vill.) H.P. Fuchs FAC Spinulose Wood Fern

Dryopteris cristata (L.) Gray FACW Crested Wood Fern

Dryopteris expansa (K. Presl) Fraser-Jenkins & Jermy FACW Spreading Wood Fern

Dudleya variegata (S. Wats.) Moran FACU Variegated Live-Forever

Dulichium arundinaceum (L.) Britt. OBL Three-Way Sedge

Dysphania ambrosioides (L.) Mosyakin & Clemants FAC Mexican-Tea

Dysphania botrys (L.) Mosyakin & Clemants FACU Jerusalem-Oak

Echinochloa colona (L.) Link FAC Jungle-Rice

Echinochloa crus-galli (L.) Beauv. FACW Large Barnyard Grass

Echinochloa crus-pavonis (Kunth) J.A. Schultes FACW Gulf Cock's-Spur Grass

Echinochloa esculenta (A. Braun) H. Scholtz FACU Japanese Water Grass

Echinochloa frumentacea Link UPL Japanese-Millet

Echinochloa holciformis (Kunth) Chase FACW Decorative-Millet

Echinochloa muricata (Beauv.) Fern. FACW Rough Barnyard Grass

Echinochloa oryzicola (Vasinger) Vasinger FACW Rice-Field Grass

Echinochloa oryzoides (Ard.) Fritsch OBL Early Water Grass

Echinochloa walteri (Pursh) Heller OBL Long-Aw n Cock's-Spur Grass

Echinocystis lobata (Michx.) Torr. & Gray FACU Wild Cucumber

Echinodorus berteroi (Spreng.) Fassett OBL Upright Burrhead

Echinopepon wrightii (Gray) S. Wats. FAC Wild Balsam-Apple

Eclipta prostrata (L.) L. FAC False Daisy

Egeria densa Planch. OBL Brazilian-Waterw eed

Eichhornia crassipes (Mart.) Solms OBL Common Water-Hyacinth

Elaeagnus angustifolia L. FAC Russian-Olive

Elaeagnus commutata Bernh. ex Rydb. FAC American Silver-Berry

Elatine ambigua Wight OBL Asian Waterw ort

Elatine brachysperma Gray OBL Short-Seed Waterw ort

Elatine californica Gray OBL California Waterw ort

Elatine chilensis Gray OBL Chilean Waterw ort

Elatine heterandra Mason OBL Mosquito Waterw ort

Elatine rubella Rydb. OBL Red-Stem Waterw ort

Eleocharis acicularis (L.) Roemer & J.A. Schultes OBL Needle Spike-Rush

Eleocharis albida Torr. OBL White Spike-Rush

Eleocharis atropurpurea (Retz.) J.& K. Presl FACW Purple Spike-Rush

Eleocharis bella (Piper) Svens. FACW Delicate Spike-Rush

Eleocharis bolanderi Gray FACW Bolander's Spike-Rush

Eleocharis compressa Sullivant FACW Flat-Stem Spike-Rush

Eleocharis cylindrica Buckl. OBL Cylinder Spike-Rush

Eleocharis elliptica Kunth OBL Elliptic Spike-Rush

Eleocharis engelmannii Steud. OBL Engelmann's Spike-Rush

Eleocharis flavescens (Poir.) Urban OBL Yellow Spike-Rush

Eleocharis geniculata (L.) Roemer & J.A. Schultes OBL Capitate Spike-Rush

Eleocharis mamillata (Lindb. f.) Lindb. f. OBL Soft-Stem Spike-Rush

Eleocharis montana (Kunth) Roemer & J.A. Schultes OBL Mountain Spike-Rush

Eleocharis montevidensis Kunth FACW Sand Spike-Rush

Eleocharis obtusa (Willd.) J.A. Schultes OBL Blunt Spike-Rush

Eleocharis pachycarpa Desv. OBL Black-Sand Spike-Rush

Eleocharis palustris (L.) Roemer & J.A. Schultes OBL Common Spike-Rush

Eleocharis parishii Britt. FACW Parish's Spike-Rush

Eleocharis parvula(Roemer & J.A. Schultes) Link ex Bluff, Nees &

SchauerOBL Little-Head Spike-Rush

Eleocharis quadrangulata (Michx.) Roemer & J.A. Schultes OBL Square-Stem Spike-Rush

Eleocharis quinqueflora (F.X. Hartmann) Schw arz OBL Few -Flow er Spike-Rush

Eleocharis radicans (A. Dietr.) Kunth OBL Rooted Spike-Rush


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Eleocharis rostellata (Torr.) Torr. OBL Beaked Spike-Rush

Eleocharis suksdorfiana Beauv. OBL Suksdorf 's Spike-Rush

Eleocharis torticulmis S.G. Sm. OBL Tw ist-Stem Spike-Rush

Eleusine indica (L.) Gaertn. UPL Indian Goose Grass

Elionurus tripsacoides Humb. & Bonpl. ex Willd. FAC Pan-American Balsamscale

Ellisia nyctelea (L.) L. FACU Aunt Lucy

Elodea bifoliata St. John OBL Tw o-Leaf Waterw eed

Elodea callitrichoides (L.C. Rich.) Caspary OBL South American Waterw eed

Elodea canadensis Michx. OBL Canadian Waterw eed

Elodea nuttallii (Planch.) St. John OBL Western Waterw eed

Elymus alaskanus (Scribn. & Merr.) A. Löve UPL Alaska Wild Rye

Elymus canadensis L. FAC Nodding Wild Rye

Elymus curvatus Piper FAC Aw nless Wild Rye

Elymus elymoides (Raf.) Sw ezey FACU Western Bottle-Brush Grass

Elymus glaucus Buckl. FACU Blue Wild Rye

Elymus lanceolatus (Scribn. & J.G. Sm.) Gould UPL Streamside Wild Rye

Elymus repens (L.) Gould FAC Creeping Wild Rye

Elymus trachycaulus (Link) Gould ex Shinners FACU Slender Wild Rye

Elymus villosus Muhl. ex Willd. FACU Hairy Wild Rye

Elymus virginicus L. FACW Virginia Wild Rye

Elymus wawawaiensis J. Carlson & Barkw orth FACU Waw aw ai Wild Rye

Emilia fosbergii D.H. Nicols. UPL Florida Tassel-Flow er

Emilia sonchifolia (L.) DC. UPL Lilac Tassel-Flow er

Empetrum nigrum L. FAC Black Crow berry

Enchylaena tomentosa R. Br. UPL Ruby-Saltbush

Epilobium anagallidifolium Lam. FACU Pimpernel Willow herb

Epilobium campestre (Jepson) Hoch & W.L. Wagner OBL Smooth Willow herb

Epilobium ciliatum Raf. FACW Fringed Willow herb

Epilobium clavatum Trel. FACU Talus Willow herb

Epilobium cleistogamum (Curran) Hoch & Raven OBL Self ing Willow herb

Epilobium densiflorum (Lindl.) Hoch & Raven FACW Dense-Flow er Willow herb

Epilobium glaberrimum Barbey FACW Glaucous Willow herb

Epilobium hallianum Hausskn. FACW Glandular Willow herb

Epilobium hirsutum L. FACW Codlins-and-Cream

Epilobium hornemannii Reichenb. FACW Hornemann's Willow herb

Epilobium howellii Hoch FACW Yuba Pass Willow herb

Epilobium lactiflorum Hausskn. FACW White-Flow er Willow herb

Epilobium leptocarpum Hausskn. FACW Slender-Fruit Willow herb

Epilobium leptophyllum Raf. FACW Bog Willow herb

Epilobium luteum Pursh FACW Yellow Willow herb

Epilobium minutum Lindl. ex Lehm. FACU Chaparral Willow herb

Epilobium obcordatum Gray FACU Rockfringe

Epilobium oreganum Greene OBL Grants Pass Willow herb

Epilobium oregonense Hausskn. OBL Oregon Willow herb

Epilobium pallidum (Eastw .) Hoch & Raven FAC Large-Flow er Willow herb

Epilobium palustre L. OBL Marsh Willow herb

Epilobium saximontanum Hausskn. FACW Rocky Mountain Willow herb

Epilobium siskiyouense (Munz) Hoch & Raven FACW Siskiyou Willow herb

Epilobium suffruticosum Nutt. FACU Shrubby Willow herb

Epilobium torreyi (S. Wats.) Hoch & Raven FACW Brook Willow herb

Epipactis gigantea Dougl. ex Hook. OBL Giant Helleborine

Epipactis helleborine (L.) Crantz FACU Helleborine

Equisetum X ferrissii Clute (pro sp.) FACW

Equisetum X litorale Kühlew ein ex Rupr. (pro sp.) OBL

Equisetum X mackaii (New m.) Brichan FACW

Equisetum X nelsonii (A.A. Eat.) Schaffn. (pro sp.) FACW

Equisetum arvense L. FAC Field Horsetail

Equisetum fluviatile L. OBL Water Horsetail

Equisetum hyemale L. FACW Tall Scouring-Rush

Equisetum laevigatum A. Braun FACW Smooth Scouring-Rush

Equisetum myriochaetum Schlecht. & Cham. OBL Mexican Giant Horsetail

Equisetum palustre L. FACW Marsh Horsetail

Equisetum scirpoides Michx. FAC Dw arf Scouring-Rush

Equisetum sylvaticum L. FAC Woodland Horsetail

Equisetum telmateia Ehrh. FACW Giant Horsetail

Equisetum variegatum Schleich. ex F. Weber & D.M.H. Mohr FACW Variegated Scouring-Rush

Eragrostis amabilis (L.) Wight & Arn. ex Nees FAC Feather Love Grass

Eragrostis cilianensis (All.) Vign. ex Janchen FACU Stink Grass

Eragrostis ciliaris (L.) R. Br. FACU Gopher-Tail Love Grass

Eragrostis frankii C.A. Mey. ex Steud. FACW Sandbar Love Grass

Eragrostis hypnoides (Lam.) B.S.P. OBL Teal Love Grass

Eragrostis lugens Nees FACU Mourning Love Grass

Eragrostis lutescens Scribn. FACU Six-Weeks Love Grass

Eragrostis mexicana (Hornem.) Link FACU Mexican Love Grass

Eragrostis pectinacea (Michx.) Nees ex Jedw . FAC Purple Love Grass


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Eragrostis pilosa (L.) Beauv. FACU Indian Love Grass

Eragrostis reptans (Michx.) Nees OBL Creeping Love Grass

Eragrostis secundiflora J. Presl UPL Red Love Grass

Eragrostis spectabilis (Pursh) Steud. UPL Petticoat-Climber

Eremochloa ciliaris (L.) Merr. FACU Fringed Centipede Grass

Eremogone capillaris (Poir.) Fenzl FACU Slender Mountain Matted Sandw ort

Erigeron acris L. FACU Bitter Fleabane

Erigeron annuus (L.) Pers. FACU Eastern Daisy Fleabane

Erigeron bonariensis L. FACU Asthmaw eed

Erigeron canadensis L. FACU Canadian Horsew eed

Erigeron coulteri Porter FACW Large Mountain Fleabane

Erigeron elatior (Gray) Greene FAC Tall Fleabane

Erigeron flagellaris Gray FACU Trailing Fleabane

Erigeron formosissimus Greene UPL Beautiful Fleabane

Erigeron glabellus Nutt. FAC Streamside Fleabane

Erigeron glacialis (Nutt.) A. Nels. FAC Glacier Fleabane

Erigeron glaucus Ker-Gaw l. FACU Seaside Fleabane

Erigeron humilis Graham FACW Arctic Alpine Fleabane

Erigeron kachinensis Welsh & Moore OBL Kachina Fleabane

Erigeron karvinskianus DC. FAC Latin American Fleabane

Erigeron lanatus Hook. FACU Woolly Fleabane

Erigeron lonchophyllus Hook. FACW Short-Ray Fleabane

Erigeron melanocephalus (A. Nels.) A. Nels. FAC Black-Head Fleabane

Erigeron nivalis Nutt. FAC Scotter's Fleabane

Erigeron philadelphicus L. FACU Philadelphia Fleabane

Erigeron strigosus Muhl. ex Willd. FACU Prairie Fleabane

Eriobotrya japonica (Thunb.) Lindl. UPL Loquat

Eriocaulon cinereum R. Br. OBL Ashy Pipew ort

Eriocaulon microcephalum Kunth OBL Small-Head Pipew ort

Eriochloa acuminata (J. Presl) Kunth FACW Taper-Tip Cup Grass

Eriochloa aristata Vasey FACW Bearded Cup Grass

Eriochloa contracta A.S. Hitchc. FAC Prairie Cup Grass

Eriochloa fatmensis (Hochst. & Steud.) W.D. Clayton FAC Tropical Cup Grass

Eriogonum ampullaceum J.T. How ell FACU Mono Wild Buckw heat

Eriogonum argophyllum Reveal FACW Sulphur Hot Springs Wild Buckw heat

Eriogonum ovalifolium Nutt. FACU Cushion Wild Buckw heat

Eriophorum angustifolium Honckeny OBL Tall Cotton-Grass

Eriophorum callitrix Cham. ex C.A. Mey. FACW Arctic Cotton-Grass

Eriophorum chamissonis C.A. Mey. OBL Chamisso's Cotton-Grass

Eriophorum crinigerum (Gray) Beetle OBL Meadow 's Cotton-Grass

Eriophorum gracile W.D.J. Koch OBL Slender Cotton-Grass

Eriophorum scheuchzeri Hoppe OBL White Cotton-Grass

Eriophorum viridicarinatum (Engelm.) Fern. OBL Tassel Cotton-Grass

Erodium botrys (Cav.) Bertol. FACU Long-Beak Stork's-Bill

Eryngium alismifolium Greene FACW Modoc Eryngo

Eryngium aristulatum Jepson OBL California Eryngo

Eryngium armatum (S. Wats.) Coult. & Rose FACW Coastal Eryngo

Eryngium articulatum Hook. OBL Bee-Thistle

Eryngium castrense Jepson OBL Great Valley Eryngo

Eryngium constancei Sheikh OBL Loch Lomond Eryngo

Eryngium heterophyllum Engelm. FACW Wright's Eryngo

Eryngium jepsonii Coult. & Rose OBL Jepson's Eryngo

Eryngium lemmonii Coult. & Rose FAC Chiricahua Mountain Eryngo

Eryngium mathiasiae Sheikh OBL Mathias' Eryngo

Eryngium nasturtiifolium Juss. ex Delar. f . FACW Hierba-Del-Sapo

Eryngium petiolatum Hook. OBL Rush-Leaf Eryngo

Eryngium phyteumae Delar. f. OBL Huachuca Mountain Eryngo

Eryngium pinnatisectum Jepson OBL Tuolumne Eryngo

Eryngium racemosum Jepson OBL Delta Eryngo

Eryngium sparganophyllum Hemsl. OBL Arizona Eryngo

Eryngium spinosepalum Mathias FACW Spiny-Sepal Eryngo

Eryngium vaseyi Coult. & Rose FACW Coyote-Thistle

Erysimum cheiranthoides L. FACU Worm-Seed Wallf low er

Erythronium grandiflorum Pursh FACU Yellow Avalanche-Lily

Erythronium revolutum Sm. FAC Mahogany Faw n-Lily

Eucalyptus camaldulensis Dehnhardt FAC River Red Gum

Euonymus occidentalis Nutt. ex Torr. FACW Western Wahoo

Euphorbia cyathophora Murr. UPL Fire-on-the-Mountain

Euphorbia heterophylla L. UPL Mexican-Fireplant

Euphorbia hirta L. FACU Pill-Pod Sandmat

Euphorbia hooveri L.C. Wheeler OBL Hoover's Sandmat

Euphorbia hypericifolia L. FACU Graceful Sandmat

Euphorbia hyssopifolia L. FACU Hyssop-Leaf Sandmat

Euphorbia maculata L. UPL Spotted Sandmat

Euphorbia marginata Pursh UPL Snow -on-the-Mountain


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Euphorbia nutans Lag. FACU Eyebane

Euphorbia prostrata Ait. FACU Prostrate Sandmat

Euphorbia pulcherrima Willd. ex Klotzsch UPL Poinsettia

Euphorbia serpens Kunth FACU Matted Sandmat

Euphorbia spathulata Lam. FAC Warty Spurge

Euphorbia tirucalli L. FACU False Caper

Euphrosyne acerosa (Nutt.) Panero FACU Copperw eed

Eurybia merita (A. Nels.) Nesom FACU Behring Wood-Aster

Eurybia sibirica (L.) Nesom FAC Siberian Wood-Aster

Eustoma exaltatum (L.) Salisb. OBL Catchfly Prairie-Gentian

Euthamia graminifolia (L.) Nutt. FAC Flat-Top Goldentop

Euthamia occidentalis Nutt. FACW Western Goldentop

Eutrochium maculatum (L.) E. Lamont OBL Spotted Trumpetw eed

Evolvulus sericeus Sw . UPL Silver Dw arf-Morning-Glory

Extriplex californica (Moq.) E.H. Zacharias FAC California Mock Saltbush

Extriplex joaquiniana (A. Nels.) E.H. Zacharias FACU San Joaquin Mock Saltbush

Fallopia convolvulus (L.) A. Löve FACU Black-Bindw eed

Fallopia dumetorum (L.) Holub FACU Corpse Black-Bindw eed

Fatoua villosa (Thunb.) Nakai FAC Hairy Crabw eed

Festuca californica Vasey FACU California Fescue

Festuca idahoensis Elmer FACU Bluebunch Fescue

Festuca ovina L. FACU Sheep Fescue

Festuca rubra L. FAC Red Fescue

Festuca subulata Trin. FACU Bearded Fescue

Festuca trachyphylla (Hack.) Krajina UPL Hard Fescue

Ficus carica L. FACU Common Fig

Fimbristylis annua (All.) Roemer & J.A. Schultes FAC Annual Fimbry

Fimbristylis autumnalis (L.) Roemer & J.A. Schultes OBL Slender Fimbry

Fimbristylis puberula (Michx.) Vahl FACW Hairy Fimbry

Fimbristylis thermalis S. Wats. OBL Hot Springs Fimbry

Fimbristylis vahlii (Lam.) Link FACW Vahl's Fimbry

Flaveria campestris J.R. Johnston FACW Alkali Yellow tops

Flaveria chlorifolia Gray FACW Clasping Yellow tops

Flaveria trinervia (Spreng.) C. Mohr FAC Clustered Yellow tops

Fleischmannia sonorae (Gray) King & H.E. Robins. FAC Sonoran Slender-Thoroughw ort

Floerkea proserpinacoides Willd. FACW False Mermaidw eed

Forestiera pubescens Nutt. FACU Stretchberry

Fragaria chiloensis (L.) P. Mill. FACU Beach Straw berry

Fragaria vesca L. UPL Woodland Straw berry

Fragaria virginiana Duchesne FACU Virginia Straw berry

Frangula alnus P. Mill. FAC Glossy False Buckthorn

Frangula betulifolia (Greene) V. Grub. FAC Birch-Leaf False Buckthorn

Frangula obovata (Kearney & Peebles) Nesom & J.O. Saw yer FAC

Frangula purshiana (DC.) Cooper FACU Cascara False Buckthorn

Frankenia palmeri S. Wats. FACW Palmer's Sea-Heath

Frankenia salina (Molina) I.M. Johnston FACW Alkali Sea-Heath

Fraxinus americana L. FACU White Ash

Fraxinus latifolia Benth. FACW Oregon Ash

Fraxinus pennsylvanica Marsh. FACW Green Ash

Fraxinus velutina Torr. FAC Velvet Ash

Fritillaria agrestis Greene FAC Stinkbells

Fuchsia magellanica Lam. FACU Hardy Fuchsia

Fuirena simplex Vahl OBL Western Umbrella Sedge

Fuirena squarrosa Michx. OBL Hairy Umbrella Sedge

Funastrum cynanchoides (Dcne.) Schlechter FACU Fringed Tw inevine

Funkiella confusa (Garay) Szlach., Rutk. & Mytnik FAC Rimrock Ladies'-Braids

Gaillardia flava Rydb. FACU Yellow Blanket-Flow er

Gaillardia pulchella Foug. FACU Firew heel

Galeopsis tetrahit L. FACU Brittle-Stem Hemp-Nettle

Galinsoga parviflora Cav. UPL Gallant-Soldier

Galinsoga quadriradiata Ruiz & Pavón UPL Shaggy-Soldier

Galium aparine L. FACU Sticky-Willy

Galium boreale L. FACU Northern Bedstraw

Galium circaezans Michx. FACU Licorice Bedstraw

Galium divaricatum Pourret ex Lam. FACU Lamarck's Bedstraw

Galium mexicanum Kunth FAC Mexican Bedstraw

Galium microphyllum Gray FACU Bracted Bedstraw

Galium mollugo L. FACU White Bedstraw

Galium parisiense L. UPL Wall Bedstraw

Galium trifidum L. FACW Three-Petal Bedstraw

Galium triflorum Michx. FACU Fragrant Bedstraw

Galium uncinulatum DC. FAC Bristly Bedstraw

Gamochaeta pensylvanica (Willd.) Cabrera UPL Pennsylvania Everlasting

Gamochaeta purpurea (L.) Cabrera FACU Spoon-Leaf Purple Everlasting

Gastridium phleoides (Nees & Meyen) C.E. Hubbard FACU Nit Grass


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Gaultheria humifusa (Graham) Rydb. FACW Alpine Spicy-Wintergreen

Gaultheria ovatifolia Gray FAC Western Teaberry

Gaultheria shallon Pursh FACU Salal

Gayophytum humile Juss. FAC Dw arf Groundsmoke

Gayophytum racemosum Torr. & Gray FAC Black-Foot Groundsmoke

Gentiana affinis Griseb. FACU Pleated Gentian

Gentiana algida Pallas FACW Whitish Gentian

Gentiana calycosa Griseb. FACW Rainier Pleated Gentian

Gentiana douglasiana Bong. OBL Sw amp Gentian

Gentiana fremontii Torr. FACW Moss Gentian

Gentiana glauca Pallas FAC Pale Gentian

Gentiana newberryi Gray FACW Alpine Gentian

Gentiana parryi Engelm. FAC Parry's Gentian

Gentiana prostrata Haenke FACW Pygmy Gentian

Gentiana sceptrum Griseb. OBL King's-Scepter Gentian

Gentiana setigera Gray OBL Mendocino Gentian

Gentianella amarella (L.) Börner FACW Autumn Dw arf-Gentian

Gentianella propinqua (Richards.) J. Gillett FACW Four-Part Dw arf-Gentian

Gentianella wrightii (Gray) Holub OBL Wright's Dw arf-Gentian

Gentianopsis barbellata (Engelm.) Iltis FACW Perennial Fringed-Gentian

Gentianopsis holopetala (Gray) Iltis OBL Sierran Fringed-Gentian

Gentianopsis simplex (Gray) Iltis FACW One-Flow er Fringed-Gentian

Gentianopsis thermalis (Kuntze) Iltis FACW Rocky Mountain Fringed-Gentian

Geocaulon lividum (Richards.) Fern. FAC False Toadflax

Geranium caespitosum James FAC Purple Cluster Crane's-Bill

Geranium californicum G.N. & F.F. Jones FAC California Crane's-Bill

Geranium richardsonii Fisch. & Trautv. FACU White Crane's-Bill

Geranium robertianum L. FACU Lesser Herbrobert

Geranium viscosissimum Fisch. & C.A. Mey. FAC Sticky Purple Crane's-Bill

Geum aleppicum Jacq. FAC Yellow Avens

Geum macrophyllum Willd. FACW Large-Leaf Avens

Geum rivale L. FACW Purple Avens

Geum rossii (R. Br.) Ser. FACU Ross' Avens

Geum triflorum Pursh FACU Old-Man's-Whiskers

Githopsis diffusa Gray FAC San Gabriel Bluecup

Githopsis specularioides Nutt. FACU Common Bluecup

Glechoma hederacea L. FACU Groundivy

Gleditsia triacanthos L. FAC Honey-Locust

Glehnia littoralis F. Schmidt ex Miq. UPL American Silvertop

Glinus lotoides L. OBL Lotus Sw eetjuice

Glinus radiatus (Ruiz & Pavón) Rohrb. FACW Spreading Sw eetjuice

Glyceria X occidentalis (Piper) J.C. Nels. OBL

Glyceria borealis (Nash) Batchelder OBL Small Floating Manna Grass

Glyceria declinata Brébiss. FACW Waxy Manna Grass

Glyceria elata (Nash ex Rydb.) M.E. Jones OBL Tall Manna Grass

Glyceria fluitans (L.) R. Br. OBL Water Manna Grass

Glyceria grandis S. Wats. OBL American Manna Grass

Glyceria leptostachya Buckl. OBL Slender-Spike Manna Grass

Glyceria striata (Lam.) A.S. Hitchc. OBL Fow l Manna Grass

Glycyrrhiza lepidota Pursh FAC American Licorice

Gnaphalium exilifolium A. Nels. FACW Slender Cudw eed

Gnaphalium palustre Nutt. FACW Western Marsh Cudw eed

Gnaphalium uliginosum L. FAC Marsh Cudw eed

Goodmania luteola (Parry) Reveal & Ertter FACW Yellow Spinecape

Goodyera oblongifolia Raf. FACU Green-Leaf Rattlesnake-Plantain

Goodyera repens (L.) R. Br. FACU Dw arf Rattlesnake-Plantain

Gossypium hirsutum L. UPL Upland Cotton

Graphephorum wolfii (Vasey) Vasey ex Coult. FACU

Gratiola ebracteata Benth. ex A. DC. OBL Bractless Hedge-Hyssop

Gratiola heterosepala Mason & Bacig. OBL Boggs Lake Hedge-Hyssop

Gratiola neglecta Torr. OBL Clammy Hedge-Hyssop

Grevillea robusta A. Cunningham ex R. Br. UPL Silk-Oak

Grindelia camporum Greene FACW Great Valley Gumw eed

Grindelia ciliata (Nutt.) Spreng. FACU Spanishgold

Grindelia fraxinipratensis Reveal & Beatley FACW Ash Meadow s Gumw eed

Grindelia hirsutula Hook. & Arn. FACW Hairy Gumw eed

Grindelia integrifolia DC. FACW Puget Sound Gumw eed

Grindelia nana Nutt. FACW Idaho Gumw eed

Grindelia squarrosa (Pursh) Dunal FACU Curly-Cup Gumw eed

Grindelia stricta DC. FACW Oregon Gumw eed

Gymnocarpium dryopteris (L.) New man FAC Northern Oak Fern

Gymnosteris parvula Heller FAC Small-Flow er Starlet

Habenaria quinqueseta (Michx.) Eat. FACW Long-Horn False Rein Orchid

Hackelia floribunda (Lehm.) I.M. Johnston FACU Many-Flow er Stickseed

Hackelia micrantha (Eastw .) J.L. Gentry FACU Blue Stickseed


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Hackelochloa granularis (L.) Kuntze UPL Pit-Scale Grass

Hainardia cylindrica (Willd.) W. Greuter FACW Barb Grass

Halenia rothrockii Gray FAC Mt. Graham Spurred-Gentian

Haloragis erecta (Banks ex Murr.) Oken FAC Erect Seaberry

Hamamelis virginiana L. FACU American Witch-Hazel

Harrimanella stelleriana (Pallas) Coville FACU Alaska Bell-Heather

Hastingsia alba (Dur.) S. Wats. OBL White Rush-Lily

Hedera helix L. FACU English Ivy

Hedychium flavescens Carey ex Roscoe FAC Cream Ginger-Lily

Hedysarum alpinum L. FACU Alpine Sw eet-Vetch

Heimia salicifolia (Kunth) Link FACW Shrubby-Yellow crest

Helenium amarum (Raf.) H. Rock FACU Yellow dicks

Helenium arizonicum Blake FACW Arizona Sneezew eed

Helenium autumnale L. FACW Fall Sneezew eed

Helenium bigelovii Torr. & Gray FACW Bigelow 's Sneezew eed

Helenium bolanderi Gray FACW Coastal Sneezew eed

Helenium microcephalum DC. FACW Small-Head Sneezew eed

Helenium puberulum DC. FACW Rosilla

Helenium thurberi Gray OBL Thurber's Sneezew eed

Helianthella quinquenervis (Hook.) Gray FACU Nodding Dw arf-Sunflow er

Helianthus annuus L. FACU Common Sunflow er

Helianthus bolanderi Gray FAC Bolander's Sunflow er

Helianthus californicus DC. OBL California Sunflow er

Helianthus ciliaris DC. FAC Texas-Bluew eed

Helianthus exilis Gray FACU Serpentine Sunflow er

Helianthus grosseserratus Martens FAC Saw -Tooth Sunflow er

Helianthus heterophyllus Nutt. OBL Variable-Leaf Sunflow er

Helianthus maximiliani Schrad. UPL Maximilian Sunflow er

Helianthus nuttallii Torr. & Gray FACW Nuttall's Sunflow er

Helianthus paradoxus Heiser FACW Trans-Pecos Sunflow er

Helianthus tuberosus L. FACU Jerusalem-Artichoke

Heliopsis helianthoides (L.) Sw eet FACU Smooth Oxeye

Heliotropium curassavicum L. FACU Seaside Heliotrope

Heliotropium glabriusculum (Torr.) Gray FACW Green-Eye Heliotrope

Heliotropium greggii Torr. FAC Fragrant Heliotrope

Heliotropium molle (Torr.) I.M. Johnston FACW Soft Heliotrope

Heliotropium procumbens P. Mill. FACW Four-Spike Heliotrope

Helminthotheca echioides (L.) Holub FAC Akan Asante

Helosciadium nodiflorum (L.) W.D.J. Koch OBL Fool's-Watercress

Hemarthria altissima (Poir.) Stapf & C.E. Hubbard FACW Limpo Grass

Hemerocallis fulva (L.) L. FACU Orange Day-Lily

Hemieva ranunculifolia (Hook.) Raf. FAC Buttercup Hemieva

Heracleum maximum Bartr. FACW American Cow -Parsnip

Hesperevax caulescens (Benth.) Gray OBL Dw arf Pygmy-Cudw eed

Hesperevax sparsiflora (Gray) Greene FACU Erect Pygmy-Cudw eed

Hesperis matronalis L. FACU Mother-of-the-Evening

Hesperochiron californicus (Benth.) S. Wats. FACU California Monkey-Fiddle

Hesperochiron pumilus (Dougl. ex Griseb.) Porter FAC Dw arf Monkey-Fiddle

Heteranthera dubia (Jacq.) MacM. OBL Grass-Leaf Mud-Plantain

Heteranthera limosa (Sw .) Willd. OBL Blue Mud-Plantain

Heteranthera reniformis Ruiz & Pavón OBL Kidney-Leaf Mud-Plantain

Heterocodon rariflorum Nutt. FACW Western Pearlf low er

Heteropogon contortus (L.) Beauv. ex Roemer & J.A. Schultes FACU Tw isted Tanglehead

Heterotheca oregona (Nutt.) Shinners FACU Oregon False Golden-Aster

Heterotheca shevockii (Semple) Semple FACU Shevock's False Golden-Aster

Heuchera chlorantha Piper FACU Tall Alumroot

Heuchera rubescens Torr. UPL Pink Alumroot

Hexalectris spicata (Walt.) Barnh. UPL Spiked Crested-Coralroot

Hibiscus moscheutos L. OBL Crimson-Eyed Rose-Mallow

Hieracium triste Willd. ex Spreng. FACU Woolly Haw kw eed

Hippuris montana Ledeb. FACW Mountain Mare's-Tail

Hippuris vulgaris L. OBL Common Mare's-Tail

Hoffmannseggia glauca (Ortega) Eifert FACU Waxy Rush-Pea

Hoita macrostachya (DC.) Rydb. OBL Large Leather-Root

Hoita orbicularis (Lindl.) Rydb. OBL Round-Leaf Leather-Root

Holcus lanatus L. FAC Common Velvet Grass

Holcus mollis L. FAC Creeping Velvet Grass

Holodiscus discolor (Pursh) Maxim. FACU Creambush

Holozonia filipes (Hook. & Arn.) Greene FACU Whitecrow n

Hopia obtusa (Kunth) F. Zuloaga & O. Morrone FACU Vine-Mesquite

Hordeum arizonicum Covas FAC Arizona Barley

Hordeum brachyantherum Nevski FACW Meadow Barley

Hordeum depressum (Scribn. & J.G. Sm.) Rydb. FACW Dw arf Barley

Hordeum intercedens Nevski FAC Bob-Tail Barley

Hordeum jubatum L. FAC Fox-Tail Barley


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Hordeum marinum Huds. FAC Seaside Barley

Hordeum murinum L. FACU Wall Barley

Hordeum pusillum Nutt. FACU Little Barley

Horkelia bolanderi Gray FAC Border Honeydew

Horkelia congesta Dougl. ex Hook. FACU Sierran Honeydew

Horkelia yadonii Ertter FACU Santa Lucia Honeydew

Hornungia procumbens (L.) Hayek FAC Ovalpurse

Hosackia alamosana Rose OBL Sonoran Deer-Vetch

Hosackia gracilis Benth. FACW Harlequin Deer-Vetch

Hosackia oblongifolia Benth. OBL Streambank Deer-Vetch

Hosackia pinnata (Hook.) Abrams FACW Meadow Deer-Vetch

Hosackia rosea Eastw . UPL Rosy Deer-Vetch

Houstonia pusilla Schoepf UPL Tiny Bluet

Houstonia wrightii Gray FACU Pygmy Bluet

Howellia aquatilis Gray OBL Water How ellw ort

Humulus lupulus L. FACU Common Hop

Huperzia haleakalae (Brack.) Holub FACU Pacif ic Fir-Moss

Huperzia lucidula (Michx.) Trevisan FACW Shining Fir-Moss

Hydrilla verticillata (L. f.) Royle OBL Water-Thyme

Hydrocotyle prolifera Kellogg OBL Proliferous Marsh-Pennyw ort

Hydrocotyle ranunculoides L. f. OBL Floating Marsh-Pennyw ort

Hydrocotyle sibthorpioides Lam. FACW Law n Marsh-Pennyw ort

Hydrocotyle umbellata L. OBL Many-Flow er Marsh-Pennyw ort

Hydrocotyle verticillata Thunb. OBL Whorled Marsh-Pennyw ort

Hydrophyllum fendleri (Gray) Heller FAC Fendler's Waterleaf

Hydrophyllum occidentale (S. Wats.) Gray FACW Squaw -Lettuce

Hydrophyllum tenuipes Heller FACW Pacif ic Waterleaf

Hymenoxys hoopesii (Gray) Bierner FAC Ow l's-Claw s

Hypericum anagalloides Cham. & Schlecht. OBL Tinker's-Penny

Hypericum boreale (Britt.) Bickn. OBL Northern St. John's-Wort

Hypericum majus (Gray) Britt. FACW Greater Canadian St. John's-Wort

Hypericum mutilum L. FACW Dw arf St. John's-Wort

Hypericum perforatum L. FACU Common St. John's-Wort

Hypericum scouleri Hook. FACW Scouler's St. John's-Wort

Hypochaeris radicata L. FACU Hairy Cat's-Ear

Hypoxis hirsuta (L.) Coville FACW Eastern Yellow Star-Grass

Ilex aquifolium L. FACU English Holly

Iliamna grandiflora (Rydb.) Wiggins FACW Large-Flow er Wild Hollyhock

Iliamna rivularis (Dougl. ex Hook.) Greene FACW Streambank Wild Hollyhock

Impatiens aurella Rydb. FACW Pale-Yellow Touch-Me-Not

Impatiens capensis Meerb. FACW Spotted Touch-Me-Not

Impatiens ecalcarata Blank. FACW Spurless Touch-Me-Not

Impatiens glandulifera Royle FACW Policeman's-Helmet

Imperata brevifolia Vasey FAC California Satintail

Indigofera lindheimeriana Scheele FAC Lindheimer's Indigo

Inula helenium L. FAC Elecampane

Ipomoea aquatica Forssk. OBL Sw amp-Cabbage

Ipomoea cairica (L.) Sw eet FACU Mile-a-Minute-Vine

Ipomoea cordatotriloba Dennst. FAC Tievine

Ipomoea hederacea Jacq. FACU Ivy-Leaf Morning-Glory

Ipomoea indica (Burm. f.) Merr. FAC Ocean-Blue Morning-Glory

Ipomoea lacunosa L. FACW Whitestar

Ipomoea lindheimeri Gray UPL Lindheimer's Morning-Glory

Ipomoea purpurea (L.) Roth UPL Common Morning-Glory

Ipomoea quamoclit L. FACU Cypress-Vine

Ipomoea triloba L. FACU Littlebell

Ipomoea violacea L. FAC Heavenly-Blue Morning-Glory

Iresine diffusa Humb. & Bonpl. ex Willd. FAC Juba's-Bush

Iris giganticaerulea Small OBL Giant Blue Iris

Iris hartwegii Baker FACU Rainbow Iris

Iris longipetala Herbert FACW Coast Iris

Iris missouriensis Nutt. FACW Rocky Mountain Iris

Iris pseudacorus L. OBL Pale-Yellow Iris

Isocoma acradenia (Greene) Greene FACU Alkali Jimmyw eed

Isocoma arguta Greene FACU Contra Costa Jimmyw eed

Isocoma menziesii (Hook. & Arn.) Nesom FAC Variable Jimmyw eed

Isoetes bolanderi Engelm. OBL Bolander's Quillw ort

Isoetes echinospora Durieu OBL Spiny-Spore Quillw ort

Isoetes howellii Engelm. OBL How ell's Quillw ort

Isoetes melanopoda Gay & Durieu ex Durieu OBL Black-Foot Quillw ort

Isoetes minima A.A. Eat. FACW Midget Quillw ort

Isoetes nuttallii A. Braun ex Engelm. OBL Nuttall's Quillw ort

Isoetes occidentalis Henderson OBL Western Quillw ort

Isoetes orcuttii A.A. Eat. OBL Orcutt's Quillw ort

Isolepis carinata Hook. & Arn. ex Torr. OBL Keeled Lateral-Bulrush


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Isolepis cernua (Vahl) Roemer & J.A. Schultes OBL Low Lateral-Bulrush

Isolepis prolifera R. Br. OBL Proliferous Lateral-Bulrush

Isolepis setacea (L.) R. Br. FACW Bristle-Leaf Lateral-Bulrush

Iva annua L. FAC Annual Marsh-Elder

Iva axillaris Pursh FAC Deer-Root

Iva hayesiana Gray FACW San Diego Marsh-Elder

Ivesia kingii S. Wats. FAC King's Mousetail

Ivesia lycopodioides Gray FAC Clubmoss Mousetail

Ivesia pickeringii Torr. ex Gray OBL Silky Mousetail

Ivesia pityocharis Ertter FACW Pine Nut Mountain Mousetail

Ivesia sericoleuca (Rydb.) Rydb. FAC Plumas Mousetail

Jacobaea vulgaris Gaertn. FACU Stinking Willie

Jaegeria hirta (Lag.) Less. FACU Botao-de-Ouro

Jamesia americana Torr. & Gray FACU Five-Petal Clif fbush

Jaumea carnosa (Less.) Gray OBL Marsh Jaumea

Jensia yosemitana (Parry ex Gray) B.G. Baldw in FACU Yosemite Annual-Tarw eed

Juglans californica S. Wats. FACU Southern California Walnut

Juglans cinerea L. FACU White Walnut

Juglans hindsii (Jepson) Jepson ex R.E. Sm. FAC Northern California Walnut

Juglans major (Torr.) Heller FAC Arizona Walnut

Juglans microcarpa Berl. FAC Little Walnut

Juglans nigra L. UPL Black Walnut

Juncus acuminatus Michx. OBL Knotty-Leaf Rush

Juncus acutus L. FACW Spiny Rush

Juncus albescens (Lange) Fern. OBL Northern White Rush

Juncus alpinoarticulatus Chaix OBL Northern Green Rush

Juncus anthelatus (Wieg.) R.E. Brooks FACW Kentucky Rush

Juncus articulatus L. OBL Joint-Leaf Rush

Juncus balticus Willd. FACW Baltic Rush

Juncus biglumis L. OBL Tw o-Flow er Rush

Juncus bolanderi Engelm. OBL Bolander's Rush

Juncus brachyphyllus Wieg. FAC Short-Leaf Rush

Juncus brevicaudatus (Engelm.) Fern. OBL Narrow -Panicle Rush

Juncus breweri Engelm. FACW Brew er's Rush

Juncus bryoides F.J. Herm. OBL Moss Dw arf Rush

Juncus bufonius L. FACW Toad Rush

Juncus capillaris F.J. Herm. FACW Hairy-Stem Dw arf Rush

Juncus capitatus Weigel FACU Leafy-Bract Dw arf Rush

Juncus castaneus Sm. FACW Chestnut Rush

Juncus chlorocephalus Engelm. FACW Green-Head Rush

Juncus compressus Jacq. OBL Round-Fruit Rush

Juncus confusus Coville FAC Colorado Rush

Juncus cooperi Engelm. FACW Cooper's Rush

Juncus covillei Piper FACW Coville's Rush

Juncus dichotomus Ell. FACW Forked Rush

Juncus diffusissimus Buckl. FACW Slim-Pod Rush

Juncus digitatus C. Witham & P. Zika OBL Finger Rush

Juncus drummondii E. Mey. FACW Drummond's Rush

Juncus dubius Engelm. FACW Mariposa Rush

Juncus dudleyi Wieg. FAC Dudley's Rush

Juncus duranii Ew an OBL Duran's Rush

Juncus effusus L. FACW Lamp Rush

Juncus elliottii Chapman FACW Elliott's Rush

Juncus ensifolius Wikstr. FACW Dagger-Leaf Rush

Juncus falcatus E. Mey. FACW Sickle-Leaf Rush

Juncus filiformis L. FACW Thread Rush

Juncus gerardii Loisel. FACW Saltmarsh Rush

Juncus hallii Engelm. FAC Hall's Rush

Juncus hemiendytus F.J. Herm. OBL Herman's Dw arf Rush

Juncus interior Wieg. FAC Inland Rush

Juncus kelloggii Engelm. FACW Kellogg's Dw arf Rush

Juncus leiospermus F.J. Herm. OBL Red Bluff Dw arf Rush

Juncus lescurii Boland. FACW Salt Rush

Juncus longistylis Torr. FACW Long-Style Rush

Juncus luciensis Ertter OBL Santa Lucia Dw arf Rush

Juncus macrandrus Coville OBL Long-Anther Rush

Juncus macrophyllus Coville FACW Long-Leaf Rush

Juncus marginatus Rostk. FACW Bog Rush

Juncus mertensianus Bong. OBL Mertens' Rush

Juncus mexicanus Willd. ex J.A. & J.H. Schultes FACW Mexican Rush

Juncus nevadensis S. Wats. FACW Sierran Rush

Juncus nodatus Coville OBL Stout Rush

Juncus nodosus L. OBL Knotted Rush

Juncus occidentalis (Coville) Wieg. FACW Western Rush

Juncus orthophyllus Coville FACW Straight-Leaf Rush


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Juncus oxymeris Engelm. FACW Pointed Rush

Juncus parryi Engelm. FAC Parry's Rush

Juncus patens E. Mey. FACW Spreading Rush

Juncus phaeocephalus Engelm. FACW Brow n-Head Rush

Juncus regelii Buch. FACW Regel's Rush

Juncus rugulosus Engelm. OBL Wrinkled Rush

Juncus saximontanus A. Nels. FACW Rocky Mountain Rush

Juncus scirpoides Lam. FACW Needle-Pod Rush

Juncus supiniformis Engelm. OBL Hairy-Leaf Rush

Juncus tenuis Willd. FACW Lesser Poverty Rush

Juncus textilis Buch. FACW Basket Rush

Juncus tiehmii Ertter FACW Nevada Rush

Juncus torreyi Coville FACW Torrey's Rush

Juncus triformis Engelm. FACW Yosemite Dw arf Rush

Juncus triglumis L. FACW Three-Flow er Rush

Juncus uncialis Greene OBL Inch-High Rush

Juncus vaseyi Engelm. FACW Vasey's Rush

Juncus xiphioides E. Mey. OBL Iris-Leaf Rush

Juniperus communis L. FACU Common Juniper

Juniperus deppeana Steud. FACU Alligator Juniper

Juniperus horizontalis Moench FACU Creeping Juniper

Juniperus virginiana L. FACU Eastern Red-Cedar

Justicia americana (L.) Vahl OBL American Water-Willow

Kalmia microphylla (Hook.) Heller OBL Alpine-Laurel

Kickxia elatine (L.) Dumort. UPL Sharp-Leaf Cancerw ort

Kobresia myosuroides (Vill.) Fiori FACU Pacif ic Bog Sedge

Kobresia sibirica (Turcz. ex Ledeb.) Boeckl. FAC Siberian Bog Sedge

Kobresia simpliciuscula (Wahlenb.) Mackenzie FACW Simple Bog Sedge

Koenigia islandica L. OBL Island-Purslane

Krigia biflora (Walt.) Blake FACU Tw o-Flow er Dw arf-Dandelion

Kumlienia hystricula (Gray) Greene OBL Waterfall False Buttercup

Kummerowia stipulacea (Maxim.) Makino FACU Korean-Clover

Kummerowia striata (Thunb.) Schindl. FACU Japanese-Clover

Kyllinga brevifolia Rottb. FACW Short-Leaf Spike Sedge

Kyllinga odorata Vahl FACW Fragrant Spike Sedge

Lachnagrostis filiformis (G. Forst.) Trin. FACW Common Blow n Grass

Lactuca biennis (Moench) Fern. FAC Wild Blue Lettuce

Lactuca canadensis L. FACU Canadian Blue Lettuce

Lactuca graminifolia Michx. FAC Grass-Leaf Lettuce

Lactuca ludoviciana (Nutt.) Riddell FAC Louisiana Lettuce

Lactuca saligna L. UPL Willow -Leaf Lettuce

Lactuca serriola L. FACU Prickly Lettuce

Lactuca tatarica (L.) C.A. Mey. FAC Russian Blue Lettuce

Laennecia coulteri (Gray) Nesom FAC Coulter's Woolw ort

Lamarckia aurea (L.) Moench FACU Golden-Top Grass

Landoltia punctata (G.F.W. Mey.) D.H. Les & D.J. Craw ford OBL Dotted Duckmeat

Lantana camara L. FACU Hedgeflow er

Lantana urticoides Hayek FACU West Indian Shrub-Verbena

Lapsana communis L. FAC Common Nipplew ort

Larix occidentalis Nutt. FACU Western Larch

Lasthenia burkei (Greene) Greene OBL Burke's Goldfields

Lasthenia californica DC. ex Lindl. FACU California Goldfields

Lasthenia chrysantha (Greene ex Gray) Greene FAC Alkali-Sink Goldfields

Lasthenia conjugens Greene FACW Contra Costa Goldfields

Lasthenia ferrisiae Ornduff OBL Ferris' Goldfields

Lasthenia fremontii (Torr. ex Gray) Greene OBL Fremont's Goldfields

Lasthenia glaberrima DC. OBL Smooth Goldfields

Lasthenia glabrata Lindl. FACW Yellow -Ray Goldfields

Lasthenia minor (DC.) Ornduff FACW Coastal Goldfields

Lasthenia platycarpha (Gray) Greene FACW Alkali Goldfields

Lathyrus hirsutus L. FAC Singletary Vetchling

Lathyrus japonicus Willd. FACU Sea Vetchling

Lathyrus jepsonii Greene OBL Delta Vetchling

Lathyrus lanszwertii Kellogg UPL Nevada Vetchling

Lathyrus palustris L. OBL Marsh Vetchling

Lathyrus pusillus Ell. FAC Tiny Vetchling

Lathyrus sphaericus Retz. FACU Grass Vetchling

Lathyrus venosus Muhl. ex Willd. FAC Veiny Vetchling

Layia chrysanthemoides (DC.) Gray FACW Smooth Tidytips

Layia heterotricha (DC.) Hook. & Arn. FAC Pale-Yellow Tidytips

Layia munzii Keck FACW Munz's Tidytips

Leersia hexandra Sw . OBL Southern Cut Grass

Leersia oryzoides (L.) Sw . OBL Rice Cut Grass

Leersia virginica Willd. FACW White Grass

Legenere limosa (Greene) McVaugh OBL False Venus'-Looking-Glass


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Lemna aequinoctialis Welw . OBL Lesser Duckw eed

Lemna gibba L. OBL Inf lated Duckw eed

Lemna minor L. OBL Common Duckw eed

Lemna minuta Kunth OBL Least Duckw eed

Lemna obscura (Austin) Daubs OBL Little Duckw eed

Lemna trisulca L. OBL Ivy-Leaf Duckw eed

Lemna turionifera Landolt OBL Turion Duckw eed

Lemna valdiviana Phil. OBL Pale Duckw eed

Leonotis nepetifolia (L.) R. Br. FACU Christmas-Candlestick

Leontodon saxatilis Lam. FACU Lesser Haw kbit

Lepidium acutidens (Gray) T.J. How ell FAC

Lepidium appelianum Al-Shehbaz UPL Globe-Pod Pepperw ort

Lepidium davisii Rollins FACW Davis' Pepperw ort

Lepidium densiflorum Schrad. UPL Miner's Pepperw ort

Lepidium dictyotum Gray FAC Alkali Pepperw ort

Lepidium flavum Torr. UPL Yellow Pepperw ort

Lepidium latifolium L. FAC Broad-Leaf Pepperw ort

Lepidium latipes Hook. FACW San Diego Pepperw ort

Lepidium nitidum Nutt. FAC Shining Pepperw ort

Lepidium oxycarpum Torr. & Gray OBL Forked Pepperw ort

Lepidium perfoliatum L. FACU Clasping Pepperw ort

Lepidium thurberi Woot. FACU Thurber's Pepperw ort

Lepidium virginicum L. FACU Poorman's-Pepperw ort

Lepidospartum squamatum (Gray) Gray FACU California Scalebroom

Leptarrhena pyrolifolia (D. Don) R. Br. ex Ser. FACW Pearleaf

Leptochloa crinita (Lag.) P.M. Peterson & N. Snow FACU False Rhodes Grass

Leptosiphon bicolor Nutt. UPL True Babystars

Leptosiphon nuttallii (Gray) J.M. Porter & L.A. Johnson FACU Nuttall's Perennial Gily-Flow er

Leucaena leucocephala (Lam.) de Wit FACU White Leadtree

Leucanthemum vulgare Lam. UPL Ox-Eye Daisy

Leucospora multifida (Michx.) Nutt. FACW Narrow -Leaf Paleseed

Leucothoe davisiae Torr. ex Gray FACW Sierran Doghobble

Lewisia brachycalyx Engelm. ex Gray FACU Short-Sepal Bitter-Root

Lewisia cantelovii J.T. How ell OBL Cantelow 's Bitter-Root

Lewisia pygmaea (Gray) B.L. Robins. FACU Alpine Bitter-Root

Leymus cinereus (Scribn. & Merr.) A. Löve FAC Great Basin Lyme Grass

Leymus condensatus (J. Presl) A. Löve FACU Giant Lyme Grass

Leymus mollis (Trin.) Pilger FACU American Lyme Grass

Leymus simplex (Scribn. & T.A. Williams) D.R. Dew ey FAC Alkali Wildrye

Leymus triticoides (Buckl.) Pilger FAC Beardless Lyme Grass

Liatris lancifolia (Greene) Kittell FAC Lance-Leaf Gayfeather

Liatris ligulistylis (A. Nels.) K. Schum. FAC Strap-Style Gayfeather

Ligusticum canbyi (Coult. & Rose) Coult. & Rose FAC Canby's Wild Lovage

Ligusticum grayi Coult. & Rose FAC Sheep Wild Lovage

Ligusticum porteri Coult. & Rose FACU Porter's Wild Lovage

Ligusticum tenuifolium S. Wats. FACW Slender-Leaf Wild Lovage

Ligusticum verticillatum (Hook.) Coult. & Rose ex Rose FACW Idaho Wild Lovage

Ligustrum japonicum Thunb. FACU Japanese Privet

Ligustrum vulgare L. UPL European Privet

Lilaeopsis masonii Mathias & Constance OBL Mason's Grassw ort

Lilaeopsis occidentalis Coult. & Rose OBL Western Grassw ort

Lilaeopsis schaffneriana (Schlecht.) Coult. & Rose OBL Schaffner's Grassw ort

Lilium bolanderi S. Wats. FACW Thimble Lily

Lilium kelleyanum J.G. Lemmon OBL Kelley's Lily

Lilium maritimum Kellogg FACW Coastal Lily

Lilium pardalinum Kellogg FACW Leopard Lily

Lilium parryi S. Wats. OBL Lemon Lily

Lilium parvum Kellogg OBL Sierran Tiger Lily

Lilium philadelphicum L. FAC Wood Lily

Limnanthes alba Hartw . ex Benth. FACW White Meadow foam

Limnanthes bakeri J.T. How ell OBL Baker's Meadow foam

Limnanthes douglasii R. Br. OBL Douglas' Meadow foam

Limnanthes floccosa T.J. How ell OBL Woolly Meadow foam

Limnanthes montana Jepson OBL Mountain Meadow foam

Limnanthes pumila T.J. How ell OBL

Limnanthes vinculans Ornduff OBL Cunningham Marsh Meadow foam

Limnobium spongia (Bosc) L.C. Rich. ex Steud. OBL American Spongeplant

Limnophila X ludoviciana Thieret OBL

Limonium binervosum (G.E. Sm.) C.E. Salmon FAC Rock Sea-Lavender

Limonium brassicifolium (Webb & Berth.) Kuntze FAC Tree Sea-Lavender

Limonium californicum (Boiss.) Heller FACW Marsh-Rosemary

Limonium limbatum Small FACW Trans-Pecos Sea-Lavender

Limonium ramosissimum (Poir.) Maire FACW Algerian Sea-Lavender

Limonium sinuatum (L.) P. Mill. FACW Wavy-Leaf Sea-Lavender

Limosella acaulis Sessé & Moc. OBL Ow yhee Mudw ort


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Limosella aquatica L. OBL Aw l-Leaf Mudw ort

Limosella australis R. Br. OBL Welsh Mudw ort

Limosella pubiflora Pennell OBL Chiricahua Mountain Mudw ort

Lindernia dubia (L.) Pennell OBL Yellow -Seed False Pimpernel

Linnaea borealis L. FACU American Tw inflow er

Liparis loeselii (L.) L.C. Rich. FACW Yellow Wide-Lip Orchid

Lipocarpha aristulata (Coville) G. Tucker FACW Aw ned Halfchaff Sedge

Lipocarpha drummondii (Nees) G. Tucker FACW Drummond's Halfchaff Sedge

Lipocarpha micrantha (Vahl) G. Tucker OBL Small-Flow er Halfchaff Sedge

Lipocarpha occidentalis (Gray) G. Tucker FACW Western Halfchaff Sedge

Liquidambar styraciflua L. FAC Sw eet-Gum

Lloydia serotina (L.) Reichenb. FACU Common Alp-Lily

Lobelia anatina F. Wimmer FACW Apache Lobelia

Lobelia berlandieri A. DC. FAC Berlandier's Lobelia

Lobelia cardinalis L. OBL Cardinal-Flow er

Lobelia dortmanna L. OBL Water Lobelia

Lobelia fenestralis Cav. FACU Fringe-Leaf Lobelia

Lobelia kalmii L. OBL Brook Lobelia

Loiseleuria procumbens (L.) Desv. FACW Alpine-Azalea

Lolium perenne L. FAC Perennial Rye Grass

Lomatium bicolor (S. Wats.) Coult. & Rose FACU Wasatch Desert-Parsley

Lomatium caruifolium (Hook. & Arn.) Coult. & Rose FACW Alkali Desert-Parsley

Lomatium cookii J.S. Kagan OBL Agate Desert-Parsley

Lomatium nudicaule (Pursh) Coult. & Rose UPL Indian-Consumption-Plant

Lomatogonium rotatum (L.) Fries ex Fern. OBL Marsh-Felw ort

Lonicera X bella Zabel FACU

Lonicera cauriana Fern. FAC Sw eet-Berry Honeysuckle

Lonicera conjugialis Kellogg FAC Purple-Flow er Honeysuckle

Lonicera hispidula (Lindl.) Dougl. ex Torr. & Gray FACU Pink Honeysuckle

Lonicera involucrata (Richards.) Banks ex Spreng. FAC Four-Line Honeysuckle

Lonicera japonica Thunb. FACU Japanese Honeysuckle

Lonicera morrowii Gray UPL Morrow 's Honeysuckle

Lonicera tatarica L. UPL Tw insisters

Lonicera utahensis S. Wats. FAC Rocky Mountain Honeysuckle

Lorandersonia linifolia (Greene) Urbatsch, R.P. Roberts & Neubig FAC Spear-Leaf False Geesew ood

Lotus corniculatus L. FAC Garden Bird's-Foot-Trefoil

Lotus tenuis Waldst. & Kit. ex Willd. FACU Narrow -Leaf Bird's-Foot-Trefoil

Lotus uliginosus Schkuhr FACU Large Bird's-Foot-Trefoil

Ludwigia grandiflora (M. Micheli) Greuter & Burdet OBL Large-Flow er Primrose-Willow

Ludwigia octovalvis (Jacq.) Raven OBL Mexican Primrose-Willow

Ludwigia palustris (L.) Ell. OBL Marsh Primrose-Willow

Ludwigia peploides (Kunth) Raven OBL Floating Primrose-Willow

Ludwigia polycarpa Short & Peter OBL Many-Fruit Primrose-Willow

Ludwigia repens J.R. Forst. OBL Creeping Primrose-Willow

Luetkea pectinata (Pursh) Kuntze FACU Partridgefoot

Lupinus arcticus S. Wats. FACU Arctic Lupine

Lupinus covillei Greene FACU Shaggy Lupine

Lupinus kingii S. Wats. UPL King's Lupine

Lupinus latifolius Lindl. ex J.G. Agardh FACW Broad-Leaf Lupine

Lupinus padre-crowleyi C.P. Sm. FACU Father Crow ley's Lupine

Lupinus polyphyllus Lindl. FAC Blue-Pod Lupine

Lupinus prunophilus M.E. Jones FACU Hairy Big-Leaf Lupine

Lupinus rivularis Dougl. ex Lindl. FACU River-Bank Lupine

Luzula arcuata (Wahlenb.) Sw . UPL Curved Wood-Rush

Luzula comosa E. Mey. FAC Pacif ic Wood-Rush

Luzula multiflora (Ehrh.) Lej. FACU Common Wood-Rush

Luzula parviflora (Ehrh.) Desv. FAC Small-Flow er Wood-Rush

Luzula spicata (L.) DC. FACU Spiked Wood-Rush

Luzula subcapitata (Rydb.) Harrington OBL Colorado Wood-Rush

Luzula subcongesta (S. Wats.) Jepson FACW Donner Wood-Rush

Lycium torreyi Gray FAC Squaw thorn

Lycopodiella inundata (L.) Holub OBL Northern Bog Club-Moss

Lycopodium clavatum L. FAC Running Ground-Pine

Lycopodium lagopus (Laestad. ex Hartm.) Zinserl. ex Kuzen FACU Single-Cone Ground-Pine

Lycopus americanus Muhl. ex W. Bart. OBL Cut-Leaf Water-Horehound

Lycopus asper Greene OBL Rough Water-Horehound

Lycopus uniflorus Michx. OBL Northern Water-Horehound

Lysichiton americanus Hultén & St. John OBL Yellow -Skunk-Cabbage

Lysiloma watsonii Rose FACU Little-Leaf False Tamarind

Lysimachia arvensis (L.) U. Manns & A. Anderb. FAC Scarlet Yellow -Loosestrife

Lysimachia ciliata L. FACW Fringed Yellow -Loosestrife

Lysimachia hybrida Michx. OBL Low land Yellow -Loosestrife

Lysimachia maritima (L.) Galasso, Banfi & Soldano FACW Sea-Milkw ort

Lysimachia minima (L.) U. Manns & A. Anderb. FACW Chaffw eed

Lysimachia nummularia L. FACW Creeping-Jenny


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Lysimachia punctata L. OBL Large Yellow -Loosestrife

Lysimachia terrestris (L.) B.S.P. OBL Sw ampcandles

Lysimachia thyrsiflora L. OBL Tufted Yellow -Loosestrife

Lysimachia vulgaris L. FACW Garden Yellow -Loosestrife

Lythrum alatum Pursh OBL Wing-Angle Loosestrife

Lythrum californicum Torr. & Gray OBL California Loosestrife

Lythrum hyssopifolium L. OBL Hyssop Loosestrife

Lythrum portula (L.) D.A. Webb OBL Spatula-Leaf Loosestrife

Lythrum salicaria L. OBL Purple Loosestrife

Lythrum tribracteatum Salzm. ex Spreng. OBL Three-Bract Loosestrife

Maclura pomifera (Raf.) Schneid. UPL Osage-Orange

Macroptilium atropurpureum (Moc. & Sessé ex DC.) Urban FACU Purple Bush-Bean

Madia glomerata Hook. FACU Mountain Tarplant

Mahonia aquifolium (Pursh) Nutt. UPL Holly-Leaf Oregon-Grape

Mahonia nervosa (Pursh) Nutt. FACU Cascade Oregon-Grape

Maianthemum dilatatum (Wood) A. Nels. & J.F. Macbr. FAC Tw o-Leaf False Solomon's-Seal

Maianthemum racemosum (L.) Link FAC Feathery False Solomon's-Seal

Maianthemum stellatum (L.) Link FACU Starry False Solomon's-Seal

Malacothamnus abbottii (Eastw .) Kearney FACW Monterey Bush-Mallow

Malacothamnus davidsonii (B.L. Robins.) Greene FACU Sand Bush-Mallow

Malaxis monophyllos (L.) Sw . FACW White Adder's-Mouth Orchid

Malephora crocea (Jacq.) Schw ant. FACU Coppery-Mesemb

Malus fusca (Raf.) Schneid. FAC Oregon Crabapple

Malvastrum coromandelianum (L.) Garcke FAC Three-Lobe False Mallow

Malvaviscus arboreus Dill. ex Cav. FACU Wax-Mallow

Malvella leprosa (Ortega) Krapov. FACU Alkali-Mallow

Marrubium vulgare L. FACU White Horehound

Marsilea drummondii A. Braun OBL Drummond's Water-Clover

Marsilea mollis B.L. Robins. & Fern. OBL Chihuahuan Water-Clover

Marsilea oligospora Goodding OBL Pacif ic Water-Clover

Marsilea vestita Hook. & Grev. OBL Hairy Water-Clover

Matricaria discoidea DC. FACU Pineapple-Weed

Matricaria occidentalis Greene FACW Valley Mayw eed

Mazus pumilus (Burm. f.) Steenis FACU Japanese Mazus

Mecardonia procumbens (P. Mill.) Small FACW Baby-Jump-Up

Meconella oregana Nutt. FAC White Fairy-Poppy

Medicago lupulina L. FAC Black Medick

Medicago polymorpha L. FACU Toothed Medick

Medicago sativa L. UPL Alfalfa

Medicago truncatula Gaertn. FACU Barrel Medick

Megathyrsus maximus (Jacq.) B.K. Simon & S.W.L. Jacobs FAC Guinea Grass

Melampodium perfoliatum (Cav.) Kunth FAC Perfoliate Blackfoot

Melampyrum lineare Desr. FAC American Cow -Wheat

Melia azedarach L. UPL China-Berry

Melica bulbosa Geyer ex Porter & Coult. FACU Onion Grass

Melica spectabilis Scribn. FAC Show y Melic Grass

Melilotus indicus (L.) All. FACU Indian Sw eet-Clover

Melilotus officinalis (L.) Lam. FACU Yellow Sw eet-Clover

Melinis repens (Willd.) Zizka UPL Creeping Molasses Grass

Melissa officinalis L. UPL Lemonbalm

Melochia pyramidata L. FAC Pyramid-Flow er

Melothria pendula L. FAC Guadeloupe-Cucumber

Mentha X gracilis Sole (pro sp.) FACW

Mentha X piperita L. (pro sp.) FACW

Mentha X rotundifolia (L.) Huds. (pro sp.) FAC

Mentha X villosa Huds. (pro sp.) FACW

Mentha aquatica L. FACW Water Mint

Mentha arvensis L. FACW American Wild Mint

Mentha pulegium L. OBL Pennyroyal

Mentha spicata L. FACW Spearmint

Mentha suaveolens Ehrh. FACW Apple Mint

Mentzelia leucophylla Brandeg. FAC Ash Meadow s Blazingstar

Menyanthes trifoliata L. OBL Buck-Bean

Menziesia ferruginea Sm. FACU Fool's-Huckleberry

Merremia dissecta (Jacq.) Hallier f. FAC Noyau-Vine

Mertensia bella Piper FACW Oregon Bluebells

Mertensia ciliata (James ex Torr.) G. Don FACW Tall Fringe Bluebells

Mertensia franciscana Heller OBL Franciscan Bluebells

Mertensia oblongifolia (Nutt.) G. Don FAC Languid-Lady

Mertensia paniculata (Ait.) G. Don FACW Tall Bluebells

Mertensia viridis (A. Nels.) A. Nels. FACU Green Bluebells

Mesembryanthemum cordifolium L. f. FAC Heart-Leaf Iceplant

Mesembryanthemum crystallinum L. FACU Crystalline Iceplant

Mesembryanthemum nodiflorum L. FACU Slender-Leaf Iceplant

Micranthes aprica (Greene) Small FACW Sierran Pseudosaxifrage


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Micranthes californica (Greene) Small FACW California Pseudosaxifrage

Micranthes ferruginea (Graham) Brouillet & Gornall FAC Russet-Hair Pseudosaxifrage

Micranthes fragosa (Suksdorf ex Small) Small FACW Cliff Pseudosaxifrage

Micranthes howellii (Greene) Small FAC How ell's Pseudosaxifrage

Micranthes integrifolia (Hook.) Small FACW Columbian Pseudosaxifrage

Micranthes lyallii (Engl.) Small FACW Red-Stem Pseudosaxifrage

Micranthes marshallii (Greene) Small OBL Hupa Valley Pseudosaxifrage

Micranthes nelsoniana (D. Don) Small FAC Heart-Leaf Pseudosaxifrage

Micranthes nidifica (Greene) Small FACW Peak Pseudosaxifrage

Micranthes occidentalis (S. Wats.) Small FAC Mountain Pseudosaxifrage

Micranthes odontoloma (Piper) Heller FACW Streambank Pseudosaxifrage

Micranthes oregana (T.J. How ell) Small OBL Bog Pseudosaxifrage

Micranthes rhomboidea (Greene) Small FACW Diamond-Leaf Pseudosaxifrage

Micranthes tolmiei (Torr. & Gray) Brouillet & Gornall FAC Tolmie's Alpine Pseudosaxifrage

Micropus californicus Fisch. & C.A. Mey. FACU Slender Cottonseed

Microseris borealis (Bong.) Schultz-Bip. OBL Northern Silverpuffs

Microseris douglasii (DC.) Schultz-Bip. FACU Douglas' Silverpuffs

Microseris laciniata (Hook.) Schultz-Bip. FACU Cut-Leaf Silverpuffs

Microsteris gracilis (Hook.) Greene FACU Annual-Phlox

Mimetanthe pilosa (Benth.) Greene FACW False Monkey-Flow er

Mimulus alsinoides Dougl. ex Benth. OBL Wing-Stem Monkey-Flow er

Mimulus angustatus (Gray) Gray OBL Purple-Lip Pansy Monkey-Flow er

Mimulus bicolor Hartw . ex Benth. FACU Yellow -and-White Monkey-Flow er

Mimulus breviflorus Piper FACW Short-Flow er Monkey-Flow er

Mimulus breweri (Greene) Coville FACU Brew er's Monkey-Flow er

Mimulus cardinalis Dougl. ex Benth. FACW Scarlet Monkey-Flow er

Mimulus congdonii B.L. Robins. FAC Congdon's Monkey-Flow er

Mimulus dentatus Nutt. ex Benth. OBL Coastal Monkey-Flow er

Mimulus dentilobus B.L. Robins. & Fern. OBL Tooth-Petal Monkey-Flow er

Mimulus douglasii (Benth.) Gray FACW Brow nies

Mimulus eastwoodiae Rydb. OBL Eastw ood's Monkey-Flow er

Mimulus exiguus Gray FACU San Bernardino Mountain Monkey-Flow er

Mimulus filicaulis S. Wats. FACW Slender-Stem Monkey-Flow er

Mimulus floribundus Lindl. OBL Purple-Stem Monkey-Flow er

Mimulus glabratus Kunth OBL Round-Leaf Monkey-Flow er

Mimulus glaucescens Greene OBL Shield-Bract Monkey-Flow er

Mimulus guttatus DC. OBL Seep Monkey-Flow er

Mimulus inconspicuus Gray FACU Small-Flow er Monkey-Flow er

Mimulus laciniatus Gray FAC Cut-Leaf Monkey-Flow er

Mimulus latidens (Gray) Greene OBL Broad-Tooth Monkey-Flow er

Mimulus lewisii Pursh FACW Great Purple Monkey-Flow er

Mimulus moschatus Dougl. ex Lindl. FACW Muskflow er

Mimulus nanus Hook. & Arn. FACU Dw arf Purple Monkey-Flow er

Mimulus nudatus Curran ex Greene OBL Bare Monkey-Flow er

Mimulus parishii Greene FACU Parish's Monkey-Flow er

Mimulus primuloides Benth. FACW Yellow Creeping Monkey-Flow er

Mimulus pulchellus (E. Drew ex Greene) A.L. Grant FACW Yellow -Lip Pansy Monkey-Flow er

Mimulus purpureus A.L. Grant FACU Little Purple Monkey-Flow er

Mimulus pygmaeus A.L. Grant OBL Egg Lake Monkey-Flow er

Mimulus ringens L. OBL Allegheny Monkey-Flow er

Mimulus rubellus Gray FAC Little Red-Stem Monkey-Flow er

Mimulus suksdorfii Gray FACU Miniature Monkey-Flow er

Mimulus tilingii Regel OBL Subalpine Monkey-Flow er

Mimulus tricolor Hartw . ex Lindl. OBL Tricolor Monkey-Flow er

Mimulus washingtonensis Gandog. OBL Washington Monkey-Flow er

Minuartia californica (Gray) Mattf. FACU California Stitchw ort

Minuartia obtusiloba (Rydb.) House FACU Alpine Stitchw ort

Minuartia rubella (Wahlenb.) Hiern. FACU Boreal Stitchw ort

Minuartia stricta (Sw .) Hiern. FAC Bog Stitchw ort

Mirabilis jalapa L. UPL Marvel-of-Peru

Mirabilis nyctaginea (Michx.) MacM. FACU Heart-Leaf Four-O'clock

Miscanthus sinensis Anderss. FACU Chinese Silver Grass

Mitella nuda L. FACW Bare-Stem Bishop's-Cap

Mitella stauropetala Piper FAC Side-Flow er Bishop's-Cap

Mitellastra caulescens (Nutt.) T.J. How ell FAC Mock Millerw ort

Mitracarpus hirtus (L.) DC. FACU Tropical Girdlepod

Modiola caroliniana (L.) G. Don FAC Carolina Bristle-Mallow

Moehringia lateriflora (L.) Fenzl FACU Blunt-Leaf Grove-Sandw ort

Moehringia macrophylla (Hook.) Fenzl FAC Large-Leaf Grove-Sandw ort

Mollugo cerviana (L.) Ser. FAC Thread-Stem Carpetw eed

Mollugo verticillata L. FACU Green Carpetw eed

Momordica charantia L. FACU Balsam-Pear

Monarda fistulosa L. FACU Osw ego-Tea

Monarda punctata L. UPL Spotted Beebalm

Monardella australis Abrams FACU Southern Mountainbalm


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Monardella linoides Gray FACU Flax-Leaf Mountainbalm

Monardella odoratissima Benth. FACU Alpine Mountainbalm

Monardella viminea Greene FACU Willow y Mountainbalm

Moneses uniflora (L.) Gray FACU Single-Delight

Monochoria vaginalis (Burm. f.) K. Presl ex Kunth OBL Heart-Shape False Pickerelw eed

Monolepis nuttalliana (J.A. Schultes) Greene FAC Nuttall's Poverty-Weed

Monolopia congdonii (Gray) B.G. Baldw in FACU San Joaquin Woollythread

Monotropa uniflora L. FACU One-Flow er Indian-Pipe

Montia chamissoi (Ledeb. ex Spreng.) Greene OBL Chamisso's Candy-Flow er

Montia dichotoma (Nutt.) T.J. How ell FAC Dw arf Candy-Flow er

Montia fontana L. OBL Fountain Candy-Flow er

Montia howellii S. Wats. FACW How ell's Candy-Flow er

Montia linearis (Dougl. ex Hook.) Greene FAC Linear-Leaf Candy-Flow er

Montia parvifolia (Moc. ex DC.) Greene FACW Little-Leaf Candy-Flow er

Morella californica (Cham.) Wilbur FACW Pacif ic Bayberry

Morus alba L. FACU White Mulberry

Morus microphylla Buckl. FACU Texas Mulberry

Morus rubra L. FACU Red Mulberry

Muhlenbergia andina (Nutt.) A.S. Hitchc. FAC Fox-Tail Muhly

Muhlenbergia asperifolia (Nees & Meyen ex Trin.) Parodi FACW Alkali Muhly

Muhlenbergia californica Vasey FACW California Muhly

Muhlenbergia eludens C.G. Reeder UPL Gravel-Bar Muhly

Muhlenbergia filiformis (Thurb. ex S. Wats.) Rydb. FACW Pullup Muhly

Muhlenbergia frondosa (Poir.) Fern. FACW Wire-Stem Muhly

Muhlenbergia glomerata (Willd.) Trin. FACW Spiked Muhly

Muhlenbergia mexicana (L.) Trin. FAC Mexican Muhly

Muhlenbergia minutissima (Steud.) Sw allen FAC Least Muhly

Muhlenbergia montana (Nutt.) A.S. Hitchc. UPL Mountain Muhly

Muhlenbergia pectinata C.O. Goodding OBL Comb-Top Muhly

Muhlenbergia racemosa (Michx.) B.S.P. FACW Green Muhly

Muhlenbergia ramulosa (Kunth) Sw allen FACU Ponderosa Muhly

Muhlenbergia richardsonis (Trin.) Rydb. FAC Matted Muhly

Muhlenbergia rigens (Benth.) A.S. Hitchc. FAC Deer Grass

Muhlenbergia schreberi J.F. Gmel. FACU Nimblew ill

Muhlenbergia sylvatica (Torr.) Torr. ex Gray FACW Woodland Muhly

Muhlenbergia uniflora (Muhl.) Fern. OBL Bog Muhly

Muhlenbergia utilis (Torr.) A.S. Hitchc. FACW Aparejo Grass

Muhlenbergia wrightii Vasey ex Coult. FACU Wright's Muhly

Muntingia calabura L. UPL Straw berry-Tree

Myoporum laetum G. Forst. FACU Ngaio-Tree

Myosotis arvensis (L.) Hill FAC Rough Forget-Me-Not

Myosotis asiatica (Vesterg.) Schischkin & Sergievskaja FAC Asian Forget-Me-Not

Myosotis discolor Pers. FAC Yellow Scorpion-Grass

Myosotis laxa Lehm. OBL Bay Forget-Me-Not

Myosotis scorpioides L. FACW True Forget-Me-Not

Myosotis sylvatica Ehrh. ex Hoffmann FACU Woodland Forget-Me-Not

Myosotis verna Nutt. FAC Spring Forget-Me-Not

Myosurus apetalus C. Gay OBL Bristly Mousetail

Myosurus cupulatus S. Wats. FAC Arizona Mousetail

Myosurus minimus L. OBL Tiny Mousetail

Myosurus sessilis S. Wats. FACW Vernal-Pool Mousetail

Myrica hartwegii S. Wats. FAC Sierran-Bayberry

Myriophyllum aquaticum (Vell.) Verdc. OBL Parrot's-Feather

Myriophyllum hippuroides Nutt. ex Torr. & Gray OBL Western Water-Milfoil

Myriophyllum quitense Kunth OBL Andean Water-Milfoil

Myriophyllum sibiricum Komarov OBL Siberian Water-Milfoil

Myriophyllum spicatum L. OBL Eurasian Water-Milfoil

Myriophyllum verticillatum L. OBL Whorled Water-Milfoil

Nabalus racemosus (Michx.) DC. FACU Purple Rattlesnake-Root

Najas flexilis (Willd.) Rostk. & Schmidt OBL Wavy Waternymph

Najas gracillima (A. Braun ex Engelm.) Magnus OBL Slender Waternymph

Najas graminea Delile OBL Ricefield Waternymph

Najas guadalupensis (Spreng.) Magnus OBL Guadalupe Waternymph

Najas marina L. OBL Holly-Leaf Waternymph

Nama stenocarpum Gray FACW Mud Fiddleleaf

Nama torynophyllum Greenm. FACW Matted Fiddleleaf

Narthecium californicum Baker OBL California Bog Asphodel

Nasturtium gambelii (S. Wats.) O.E. Schulz OBL Gambel's Watercress

Nasturtium microphyllum Boenn. ex Reichenb. OBL One-Row Watercress

Nasturtium officinale Ait. f . OBL Watercress

Navarretia breweri (Gray) Greene FAC Yellow Pincushion-Plant

Navarretia capillaris (Kellogg) Kuntze FAC Miniature Pincushion-Plant

Navarretia cotulifolia (Benth.) Hook. & Arn. OBL Cotula-Leaf Pincushion-Plant

Navarretia eriocephala Mason FAC Hoary Pincushion-Plant

Navarretia fossalis Moran OBL Vernal-Pool Pincushion-Plant


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Navarretia heterandra Mason OBL Tehama Pincushion-Plant

Navarretia intertexta (Benth.) Hook. FACW Needle-Leaf Pincushion-Plant

Navarretia jepsonii V. Bailey ex Jepson FACW Jepson's Pincushion-Plant

Navarretia leucocephala Benth. OBL White-Flow er Pincushion-Plant

Navarretia mellita Greene FAC Honey-Scented Pincushion-Plant

Navarretia myersii Allen & Day OBL Myers' Pincushion-Plant

Navarretia nigelliformis Greene FACW Adobe Pincushion-Plant

Navarretia peninsularis Greene FAC Baja Pincushion-Plant

Navarretia prostrata (Gray) Greene OBL Prostrate Pincushion-Plant

Navarretia saximontana S.C. Spencer FACW Rocky Mountain Pincushion-Plant

Navarretia squarrosa (Eschsch.) Hook. & Arn. FACU Skunkw eed

Navarretia subuligera Greene FACU Aw l-Leaf Pincushion-Plant

Navarretia tagetina Greene FACW Marigold Pincushion-Plant

Nelumbo lutea Willd. OBL American Lotus

Nemophila pedunculata Dougl. ex Benth. FAC Meadow Baby-Blue-Eyes

Neoholmgrenia andina (Nutt.) W.L. Wagner & Hoch UPL

Neokochia americana (S. Wats.) Chu & Sanderson FAC Green-Molly

Neokochia californica (S. Wats.) Chu & Sanderson FACW California-Molly

Neostapfia colusana (Burtt-Davy) Burtt-Davy OBL Colusa Grass

Neottia banksiana (Lindl.) Rchb.f. FACU Northw estern Tw ayblade

Neottia borealis (Morong) Szlach. FACW Northern Tw ayblade

Neottia convallarioides (Sw .) Rich FAC Broad-Lip Tw ayblade

Neottia cordata (L.) Rich FACW Heart-Leaf Tw ayblade

Nepeta cataria L. FACU Catnip

Nephrolepis exaltata (L.) Schott FACU Boston Sw ord Fern

Nesaea longipes Gray FACW Stalkflow er

Nicotiana attenuata Torr. ex S. Wats. FACU Coyote Tobacco

Nicotiana glauca Graham FAC Tree Tobacco

Nicotiana obtusifolia Mertens & Galeotti FACU Desert Tobacco

Nicotiana quadrivalvis Pursh FACU Indian Tobacco

Nicotiana repanda Willd. ex Lehm. FAC Fiddle-Leaf Tobacco

Nicotiana tabacum L. UPL Cultivated Tobacco

Nitrophila mohavensis Munz & Roos FACW Amargosa Niterw ort

Nitrophila occidentalis (Moq.) S. Wats. FACW Boraxw eed

Nothoscordum bivalve (L.) Britt. FACU Crow poison

Nuphar polysepala Engelm. OBL

Nymphaea X thiona Ward OBL

Nymphaea alba L. OBL European White Water-Lily

Nymphaea mexicana Zucc. OBL Banana Water-Lily

Nymphaea odorata Ait. OBL American White Water-Lily

Nymphoides peltata (Gmel.) Kuntze OBL Yellow Floatingheart

Ocimum basilicum L. UPL Sw eet Basil

Oemleria cerasiformis (Torr. & Gray ex Hook. & Arn.) Landon FACU Oso-Berry

Oenanthe sarmentosa K. Presl ex DC. OBL Pacif ic Water-Dropw ort

Oenothera biennis L. FACU King's-Cureall

Oenothera canescens Torr. & Frém. FAC Spotted Evening-Primrose

Oenothera coloradensis (Rydb.) W.L. Wagner & Hoch FACW

Oenothera curtiflora W.L. Wagner & Hoch FACU Velvetw eed

Oenothera elata Kunth FACW Hooker's Evening-Primrose

Oenothera flava (A. Nels.) Garrett FAC Long-Tube Evening-Primrose

Oenothera jamesii Torr. & Gray FACW Trumpet Evening-Primrose

Oenothera kunthiana (Spach) Munz FACU Kunth's Evening-Primrose

Oenothera laciniata Hill FAC Cut-Leaf Evening-Primrose

Oenothera longissima Rydb. OBL Long-Stem Evening-Primrose

Oenothera organensis Munz OBL Organ Mountain Evening-Primrose

Oenothera rhombipetala Nutt. ex Torr. & Gray FACU Greater Four-Point Evening-Primrose

Oenothera rosea L'Hér. ex Ait. FACW Rose Evening-Primrose

Oenothera texensis Raven & Parnell FACW Texas Evening-Primrose

Oenothera villosa Thunb. FAC Hairy Evening-Primrose

Olsynium douglasii (A. Dietr.) Bickn. FACU Grassw idow

Oncosiphon piluliferum (L. f.) Källersjö FACU Stinknet

Ophioglossum californicum Prantl FAC California Adder's-Tongue

Ophioglossum engelmannii Prantl FACW Limestone Adder's-Tongue

Ophioglossum pusillum Raf. FACW Northern Adder's-Tongue

Ophioglossum vulgatum L. FAC Southern Adder's-Tongue

Oplopanax horridus (Small) Miq. FAC Devil's-Club

Orcuttia californica Vasey OBL California Orcutt Grass

Orcuttia inaequalis Hoover OBL San Joaquin Valley Orcutt Grass

Orcuttia pilosa Hoover OBL Hairy Orcutt Grass

Orcuttia tenuis A.S. Hitchc. OBL Slender Orcutt Grass

Orcuttia viscida (Hoover) J. Reeder OBL Sacramento Orcutt Grass

Oreostemma alpigenum (Torr. & Gray) Greene FAC Tundra Mountaincrow n

Oreostemma elatum (Greene) Greene FACW Plumas Mountaincrow n

Ornithogalum umbellatum L. FACU Sleepydick

Orobanche riparia Collins FACW River Broom-Rape


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Orobanche uniflora L. FACU Naked Broom-Rape

Orogenia fusiformis S. Wats. FACW California Indian-Potato

Orthilia secunda (L.) House FACU Sidebells

Orthocarpus bracteosus Benth. FAC Rosy Ow l-Clover

Orthocarpus luteus Nutt. FACU Golden-Tongue Ow l-Clover

Oryza sativa L. OBL Cultivated Rice

Osmorhiza berteroi DC. FACU Mountain Sw eet-Cicely

Osmorhiza longistylis (Torr.) DC. FACU Aniseroot

Osmorhiza purpurea (Coult. & Rose) Suksdorf FAC Purple Sw eet-Cicely

Ostrya knowltonii Sarg. FAC Know lton's Hop-Hornbeam

Ottelia alismoides (L.) Pers. OBL Duck-Lettuce

Oxalis corniculata L. FACU Creeping Yellow Wood-Sorrel

Oxalis dillenii Jacq. FACU Slender Yellow Wood-Sorrel

Oxalis oregana Nutt. FACU Redw ood-Sorrel

Oxalis stricta L. FACU Upright Yellow Wood-Sorrel

Oxalis trilliifolia Hook. FAC Trillium-Leaf Wood-Sorrel

Oxypolis fendleri (Gray) Heller FACW Fendler's Cow bane

Oxypolis occidentalis Coult. & Rose OBL Western Cow bane

Oxyria digyna (L.) Hill FACU Mountain-Sorrel

Oxytropis deflexa (Pallas) DC. FACU Pendant-Pod Locow eed

Oxytropis lambertii Pursh UPL Stemless Locow eed

Oxytropis oreophila Gray FACU Mountain Locow eed

Oxytropis parryi Gray FACU Parry's Locow eed

Oxytropis splendens Dougl. ex Hook. FAC Whorled Locow eed

Ozomelis diversifolia (Greene) Rydb. FAC Angle-Leaf Mitrew ort

Ozomelis trifida (Graham) Rydb. FAC Pacif ic Mitrew ort

Packera bernardina (Greene) W.A. Weber & A. Löve FACU San Bernardino Groundsel

Packera bolanderi (Gray) W.A. Weber & A. Löve FAC Bolander's Groundsel

Packera clevelandii (Greene) W.A. Weber & A. Löve FACW Cleveland's Groundsel

Packera crocata (Rydb.) W.A. Weber & A. Löve FAC Saffron Groundsel

Packera debilis (Nutt.) W.A. Weber & A. Löve FACW Weak-Stem Groundsel

Packera dimorphophylla (Greene) W.A. Weber & A. Löve FACU Tw o-Leaf Groundsel

Packera hartiana (Heller) W.A. Weber & A. Löve FACW Hart's Groundsel

Packera heterophylla (Fisch.) E. Wiebe FACU Dw arf Arctic Groundsel

Packera indecora (Greene) A.& D. Löve FACW Rayless Mountain Groundsel

Packera macounii (Greene) W.A. Weber & A. Löve FACU Siskiyou Mountain Groundsel

Packera obovata (Muhl. ex Willd.) W.A. Weber & A. Löve FACU Round-Leaf Groundsel

Packera pauciflora (Pursh) A.& D. Löve FAC Rayless Alpine Groundsel

Packera paupercula (Michx.) A.& D. Löve FACW Balsam Groundsel

Packera plattensis (Nutt.) W.A. Weber & A. Löve UPL Prairie Groundsel

Packera pseudaurea (Rydb.) W.A. Weber & A. Löve FACW Streambank Groundsel

Packera spellenbergii (T.M. Barkl.) C. Jeffrey UPL Carrizo Creek Groundsel

Packera streptanthifolia (Greene) W.A. Weber & A. Löve FACU Rocky Mountain Groundsel

Packera subnuda (DC.) D.K. Trock & T.M. Barkl. FACW Buek's Groundsel

Packera tampicana (DC.) C. Jeffrey FACW Great Plains Groundsel

Palmerella debilis Gray FACW Blue Lobelia

Pancratium maritimum L. FACU Sea-Daffodil

Panicum amarum Ell. FACU Bitter Panic Grass

Panicum capillare L. FACU Common Panic Grass

Panicum coloratum L. FACW Blue Panic Grass

Panicum dichotomiflorum Michx. FACW Fall Panic Grass

Panicum flexile (Gattinger) Scribn. FAC Wiry Panic Grass

Panicum hallii Vasey UPL Hall's Panic Grass

Panicum hillmanii Chase FACU Hillman's Panic Grass

Panicum repens L. FAC Torpedo Grass

Panicum virgatum L. FACW Wand Panic Grass

Parapholis incurva (L.) C.E. Hubbard FACU Curved Sickle Grass

Parapholis strigosa (Dumort.) C.E. Hubbard OBL European Sickle Grass

Parathelypteris nevadensis (Baker) Holttum FAC

Parentucellia viscosa (L.) Caruel FAC Yellow Glandw eed

Parietaria hespera Hinton FACU Rillita Pellitory

Parietaria pensylvanica Muhl. ex Willd. FACU Pennsylvania Pellitory

Parkinsonia aculeata L. FAC Mexican Palo-Verde

Parnassia cirrata Piper OBL San Bernardino Grass-of-Parnassus

Parnassia fimbriata Koenig OBL Fringed Grass-of-Parnassus

Parnassia kotzebuei Cham. ex Spreng. OBL Kotzebue's Grass-of-Parnassus

Parnassia palustris L. OBL Marsh Grass-of-Parnassus

Parnassia parviflora DC. OBL Small-Flow er Grass-of-Parnassus

Paronychia ahartii Ertter FAC Ahart's Nailw ort

Parthenium hysterophorus L. FAC Santa Maria Feverfew

Parthenocissus inserta (Kerner) Fritsch FACU Thicket-Creeper

Parthenocissus quinquefolia (L.) Planch. FAC Virginia-Creeper

Pascopyrum smithii (Rydb.) A. Löve FAC Western-Wheat Grass

Paspalum dilatatum Poir. FAC Golden Crow n Grass

Paspalum distichum L. FACW Jointed Crow n Grass


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Paspalum notatum Flueggé FAC Bahia Grass

Paspalum plicatulum Michx. FAC Brow n-Seed Crow n Grass

Paspalum pubiflorum Rupr. ex Fourn. FACW Hairy-Seed Crow n Grass

Paspalum setaceum Michx. UPL Slender Crow n Grass

Paspalum urvillei Steud. FAC Vasey's Grass

Paspalum vaginatum Sw . FACW Seashore Crow n Grass

Paspalum virgatum L. FACW Talquezal

Passiflora arizonica (Killip) D.H. Goldman FAC Arizona Passion-Flow er

Paulownia tomentosa (Thunb.) Sieb. & Zucc. ex Steud. UPL Princesstree

Paxistima myrsinites (Pursh) Raf. FACU Oregon Boxleaf

Pectiantia breweri (Gray) Rydb. FAC

Pectiantia ovalis (Greene) Rydb. OBL

Pectiantia pentandra (Hook.) Rydb. FACW

Pedicularis attollens Gray OBL Little Elephant's-Head

Pedicularis contorta Benth. FACU White Coil-Beak Lousew ort

Pedicularis crenulata Benth. FACW Purple-Flow er Lousew ort

Pedicularis fluviatilis Heller FAC Marsh Lousew ort

Pedicularis groenlandica Retz. OBL Bull Elephant's-Head

Pedicularis parryi Gray FACU Parry's Lousew ort

Pedicularis procera Gray FACU Giant Lousew ort

Pedicularis scopulorum (Gray) Gray FACW Rocky Mountain Lousew ort

Pellaea ternifolia (Cav.) Link FACU Trans-Pecos Clif fbrake

Peltandra virginica (L.) Schott OBL Green Arrow -Arum

Penstemon attenuatus Dougl. ex Lindl. FACU Sulphur Beardtongue

Penstemon baccharifolius Hook. FACU Baccharis-Leaf Beardtongue

Penstemon globosus (Piper) Pennell & Keck FAC Globe Beardtongue

Penstemon gracilis Nutt. UPL Lilac Beardtongue

Penstemon heterodoxus Gray FACU Sierran Beardtongue

Penstemon lyallii (Gray) Gray FACU Lyall's Beardtongue

Penstemon procerus Dougl. ex Graham FAC Pincushion Beardtongue

Penstemon pseudoputus (Crossw hite) N. Holmgren FACU Kaibab Plateau Beardtongue

Penstemon rydbergii A. Nels. FACU Meadow Beardtongue

Penstemon serrulatus Menzies ex Sm. FACU Cascade Beardtongue

Penstemon virgatus Gray FACU Upright Blue Beardtongue

Penstemon whippleanus Gray FACU Dark Beardtongue

Pentachaeta fragilis Brandeg. FAC Fragile Pygmy Daisy

Perideridia californica (Torr.) A. Nels. & J.F. Macbr. FACW California Yampah

Perideridia gairdneri (Hook. & Arn.) Mathias FAC Common Yampah

Perideridia howellii (Coult. & Rose) Mathias FACW How ell's Yampah

Perideridia parishii (Coult. & Rose) A. Nels. & J.F. Macbr. FAC Parish's Yampah

Peritoma jonesii (J.F. Macbr.) Iltis FACU Jones' Beeplant

Peritoma lutea (Hook.) Raf. FACU Yellow Beeplant

Peritoma multicaulis (DC.) Iltis FACW Playa Beeplant

Peritoma serrulata (Pursh) DC. FACU Rocky Mountain Beeplant

Persicaria amphibia (L.) S.F. Gray p.p. OBL Water Smartw eed

Persicaria arifolia (L.) Haralds. OBL Halberd-Leaf Tearthumb

Persicaria bicornis (Raf.) Nieuw l. FACW Pink Knotw eed

Persicaria capitata (Buch.-Ham. ex D. Don) Gross. FACU Pink-Head Smartw eed

Persicaria glabra (Willd.) M. Gómez OBL Smooth Smartw eed

Persicaria hydropiper (L.) Delarbre OBL Mild Water-Pepper

Persicaria hydropiperoides (Michx.) Small OBL Sw amp Smartw eed

Persicaria lapathifolia (L.) S.F. Gray FACW Dock-Leaf Smartw eed

Persicaria maculosa S.F. Gray FACW Spotted Lady's-Thumb

Persicaria orientalis (L.) Spach FACW Kiss-Me-Over-the-Garden-Gate

Persicaria pensylvanica (L.) M. Gómez FACW Pinkw eed

Persicaria punctata (Ell.) Small OBL Dotted Smartw eed

Persicaria robustior (Small) Bickn. OBL Stout Smartw eed

Persicaria sagittata (L.) Gross. OBL Arrow -Leaf Tearthumb

Persicaria setacea (Baldw .) Small OBL Bog Smartw eed

Persicaria wallichii Greuter & Burdet FAC Garden Smartw eed

Petasites frigidus (L.) Fries FACW Arctic Sw eet-Colt's-Foot

Phacelia amabilis Constance FACU Saline Valley Scorpion-Weed

Phacelia heterophylla Pursh FACU Variable-Leaf Scorpion-Weed

Phacelia inundata J.T. How ell FACW Playa Yellow Scorpion-Weed

Phacelia inyoensis (J.F. Macbr.) J.T. How ell FAC Inyo Yellow Scorpion-Weed

Phacelia lemmonii Gray FACU Lemmon's Scorpion-Weed

Phacelia orogenes Brand FACU Mountain Scorpion-Weed

Phacelia parishii Gray FACU Parish's Scorpion-Weed

Phacelia procera Gray FAC Tall Scorpion-Weed

Phacelia ramosissima Dougl. ex Lehm. FACU Branched Scorpion-Weed

Phacelia tetramera J.T. How ell FAC Four-Part Yellow Scorpion-Weed

Phalacroseris bolanderi Gray OBL Bolander's Mock Dandelion

Phalaris angusta Nees ex Trin. FACW Timothy Canary Grass

Phalaris aquatica L. FACU Harding Grass

Phalaris arundinacea L. FACW Reed Canary Grass


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Phalaris brachystachys Link FACW Short-Spike Canary Grass

Phalaris californica Hook. & Arn. FAC California Canary Grass

Phalaris canariensis L. FACU Common Canary Grass

Phalaris caroliniana Walt. FACW May Grass

Phalaris lemmonii Vasey FACW Lemmon's Canary Grass

Phalaris paradoxa L. FAC Mediterranean Canary Grass

Phegopteris connectilis (Michx.) Watt FACU Narrow Beech Fern

Phippsia algida (Soland.) R. Br. OBL Ice Grass

Phleum alpinum L. FAC Mountain Timothy

Phleum pratense L. FACU Common Timothy

Phlox idahonis Wherry FACW Clearw ater Phlox

Phlox kelseyi Britt. FACW Marsh Phlox

Phlox paniculata L. FACU Fall Phlox

Phlox pilosa L. FAC Dow ny Phlox

Phragmites australis (Cav.) Trin. ex Steud. FACW Common Reed

Phragmites karka (Retz.) Trin. ex Steud. OBL Tropical Reed

Phryma leptostachya L. FACU American Lopseed

Phyla cuneifolia (Torr.) Greene FAC Wedgeleaf

Phyla fruticosa (P. Mill.) Kennedy FAC Diamond-Leaf Frogfruit

Phyla lanceolata (Michx.) Greene OBL Northern Frogfruit

Phyla nodiflora (L.) Greene FACW Turkey-Tangle

Phyllanthus caroliniensis Walt. FAC Carolina Leaf-Flow er

Phyllodoce breweri (Gray) Heller FAC Red Mountain-Heath

Phyllodoce empetriformis (Sm.) D. Don FACU Pink Mountain-Heath

Phyllodoce glanduliflora (Hook.) Coville FACU Yellow Mountain-Heath

Phyllospadix scouleri Hook. OBL Scouler's Surf-Grass

Phyllospadix torreyi S. Wats. OBL Torrey's Surf-Grass

Physalis angulata L. UPL Cut-Leaf Ground-Cherry

Physalis peruviana L. UPL Peruvian Ground-Cherry

Physalis philadelphica Lam. UPL Mexican Ground-Cherry

Physalis pubescens L. FACU Husk-Tomato

Physocarpus capitatus (Pursh) Kuntze FACW Pacif ic Ninebark

Physocarpus monogynus (Torr.) Coult. UPL Mountain Ninebark

Physocarpus opulifolius (L.) Maxim. FACU Atlantic Ninebark

Physostegia parviflora Nutt. ex Gray FACW Western False Dragonhead

Physostegia virginiana (L.) Benth. FACW Obedient-Plant

Phytolacca americana L. FAC American Pokew eed

Phytolacca icosandra L. FACU Tropical Pokew eed

Picea engelmannii Parry ex Engelm. FACU Engelmann's Spruce

Picea glauca (Moench) Voss FAC White Spruce

Picea pungens Engelm. FAC Blue Spruce

Picea sitchensis (Bong.) Carr. FAC Sitka Spruce

Pilularia americana A. Braun OBL American Pillw ort

Pinguicula macroceras Link OBL California Butterw ort

Pinus contorta Dougl. ex Loud. FAC Lodgepole Pine

Pinus monticola Dougl. ex D. Don FACU Western White Pine

Pinus ponderosa P.& C. Law son FACU Ponderosa Pine

Piperia dilatata (Pursh) Szlach. & Rutk. FACW Scentbottle

Piperia unalascensis (Spreng.) Rydb. FACU Alaska Rein Orchid

Pistia stratiotes L. OBL Water-Lettuce

Plagiobothrys acanthocarpus (Piper) I.M. Johnston OBL Adobe Popcorn-Flow er

Plagiobothrys austiniae (Greene) I.M. Johnston OBL Austin's Popcorn-Flow er

Plagiobothrys bracteatus (T.J. How ell) I.M. Johnston FACW Bracted Popcorn-Flow er

Plagiobothrys chorisianus (Cham.) I.M. Johnston OBL Artist's Popcorn-Flow er

Plagiobothrys distantiflorus (Piper) I.M. Johnston ex M.E. Peck OBL California Popcorn-Flow er

Plagiobothrys figuratus (Piper) I.M. Johnston ex M.E. Peck FACW Fragrant Popcorn-Flow er

Plagiobothrys glaber (Gray) I.M. Johnston OBL Hairless Popcorn-Flow er

Plagiobothrys glyptocarpus (Piper) I.M. Johnston FACW Sculptured Popcorn-Flow er

Plagiobothrys greenei (Gray) I.M. Johnston FACW Greene's Popcorn-Flow er

Plagiobothrys hispidulus (Greene) I.M. Johnston FACW Harsh Popcorn-Flow er

Plagiobothrys humistratus (Greene) I.M. Johnston OBL Dw arf Popcorn-Flow er

Plagiobothrys hystriculus (Piper) I.M. Johnston FACW Bearded Popcorn-Flow er

Plagiobothrys leptocladus (Greene) I.M. Johnston OBL Alkali Popcorn-Flow er

Plagiobothrys lithocaryus (Greene ex Gray) I.M. Johnston FACW Mayacamas Popcorn-Flow er

Plagiobothrys mollis (Gray) I.M. Johnston FACW Soft Popcorn-Flow er

Plagiobothrys nitens I.M. Johnston OBL Shiny-Nutlet Popcorn-Flow er

Plagiobothrys nothofulvus (Gray) Gray FAC Rusty Popcorn-Flow er

Plagiobothrys parishii I.M. Johnston OBL Parish's Popcorn-Flow er

Plagiobothrys reticulatus (Piper) I.M. Johnston FACW Netted Popcorn-Flow er

Plagiobothrys salsus (Brandeg.) I.M. Johnston FACW Salty Popcorn-Flow er

Plagiobothrys scouleri (Hook. & Arn.) I.M. Johnston FACW Meadow Popcorn-Flow er

Plagiobothrys stipitatus (Greene) I.M. Johnston FACW Stalked Popcorn-Flow er

Plagiobothrys strictus (Greene) I.M. Johnston OBL Calistoga Popcorn-Flow er

Plagiobothrys tenellus (Nutt. ex Hook.) Gray FACU Pacif ic Popcorn-Flow er

Plagiobothrys tener (Greene) I.M. Johnston OBL Slender Popcorn-Flow er


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Plagiobothrys trachycarpus (Gray) I.M. Johnston FACW Rough-Fruit Popcorn-Flow er

Plagiobothrys undulatus (Piper) I.M. Johnston OBL Wavy-Stem Popcorn-Flow er

Planodes virginicum (L.) Greene FAC Virginia Winged Rockcress

Plantago arenaria Waldst. & Kit. UPL Sand Plantain

Plantago australis Lam. FACW Mexican Plantain

Plantago bigelovii Gray OBL Annual Coastal Plantain

Plantago coronopus L. FAC Buck-Horn Plantain

Plantago elongata Pursh FACW Prairie Plantain

Plantago eriopoda Torr. FACW Red-Woolly Plantain

Plantago firma Kunze ex Walp. FACW Chilean Plantain

Plantago lanceolata L. FAC English Plantain

Plantago major L. FAC Great Plantain

Plantago maritima L. FACW Goosetongue

Plantago ovata Forssk. FACU Blond Plantain

Plantago pusilla Nutt. FAC Dw arf Plantain

Plantago rhodosperma Dcne. FAC Red-Seed Plantain

Plantago rugelii Dcne. FAC Black-Seed Plantain

Plantago subnuda Pilger FACW Tall Coastal Plantain

Plantago virginica L. FACU Pale-Seed Plantain

Platanthera X estesii Schrenk FACW

Platanthera X folsomii P.M. Brow n, nom. invalid. FACW

Platanthera X kelleyi P.M. Brow n, nom. invalid. FACW

Platanthera X lassenii Schrenk FACW

Platanthera aquilonis Sheviak OBL Bog Orchid

Platanthera brevifolia (Greene) Kranzlin FAC Short-Leaf Fringed Orchid

Platanthera huronensis (Nutt.) Lindl. OBL Lake Huron Green Orchid

Platanthera limosa Lindl. OBL Thurber's Bog Orchid

Platanthera obtusata (Banks ex Pursh) Lindl. FACW Blunt-Leaf Orchid

Platanthera orbiculata (Pursh) Lindl. FAC Lesser Round-Leaf Orchid

Platanthera rotundifolia (Banks ex Pursh) Lindl. OBL Round-Leaf Orchid

Platanthera sparsiflora (S. Wats.) Schlechter FACW Canyon Bog Orchid

Platanthera stricta Lindl. FACW Slender Bog Orchid

Platanthera tescamnis Sheviak & Jennings OBL Intermountain Bog Orchid

Platanthera yosemitensis Colw ell, Sheviak & P.E. Moore FACW Yosemite Bog Orchid

Platanus occidentalis L. FAC American Sycamore

Platanus racemosa Nutt. FAC California Sycamore

Platanus wrightii S. Wats. FACW Arizona Sycamore

Plecostachys serpyllifolia (Berg. ) Hilliard & Burtt FACU Petite-Licorice

Plectritis ciliosa (Greene) Jepson FACU Long-Spur Seablush

Plectritis congesta (Lindl.) DC. FACU Short-Spur Seablush

Plectritis macrocera Torr. & Gray FACU White Seablush

Pleuropogon californicus (Nees) Benth. ex Vasey OBL California False Semaphore Grass

Pleuropogon hooverianus (L. Benson) J.T. How ell FACW North Coast False Semaphore Grass

Pleuropogon oregonus Chase OBL Oregon False Semaphore Grass

Pleuropogon refractus (Gray) Benth. ex Vasey OBL Nodding False Semaphore Grass

Pluchea odorata (L.) Cass. FACW Sw eetscent

Pluchea sericea (Nutt.) Coville FACW Arrow -Weed

Plumbago auriculata Lam. UPL Cape Leadw ort

Plumbago zeylanica L. FAC Wild Leadw ort

Poa abbreviata R. Br. FACU Northern Blue Grass

Poa alpina L. FAC Alpine Blue Grass

Poa annua L. FAC Annual Blue Grass

Poa arctica R. Br. FACU Arctic Blue Grass

Poa arida Vasey FAC Prairie Blue Grass

Poa arnowiae Soreng FACU Arnow 's Blue Grass

Poa atropurpurea Scribn. FACW San Bernardino Blue Grass

Poa bulbosa L. FACU Bulbous Blue Grass

Poa compressa L. FACU Flat-Stem Blue Grass

Poa douglasii Nees FACU Seashore Blue Grass

Poa interior Rydb. FAC Inland Blue Grass

Poa leibergii Scribn. FACU Leiberg's Blue Grass

Poa leptocoma Trin. FACW Marsh Blue Grass

Poa macrantha Vasey UPL Sand-Dune Blue Grass

Poa napensis Beetle OBL Napa Blue Grass

Poa nemoralis L. FAC Forest Blue Grass

Poa palustris L. FAC Fow l Blue Grass

Poa pratensis L. FAC Kentucky Blue Grass

Poa reflexa Vasey & Scribn. FAC Nodding Blue Grass

Poa secunda J. Presl FACU Curly Blue Grass

Poa stebbinsii Soreng FACU Subalpine Blue Grass

Poa stenantha Trin. FACU Narrow -Flow er Blue Grass

Poa trivialis L. FACW Rough-Stalk Blue Grass

Poa unilateralis Scribn. FACU San Francisco Blue Grass

Podagrostis humilis (Vasey) Björkman FACW Alpine False Bent

Pogogyne abramsii J.T. How ell OBL San Diego Mesa-Mint


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Pogogyne clareana J.T. How ell FACW Santa Lucia Mesa-Mint

Pogogyne douglasii Benth. OBL Douglas' Mesa-Mint

Pogogyne floribunda Jokerst OBL Profuse-Flow er Mesa-Mint

Pogogyne nudiuscula Gray OBL Otay Mesa-Mint

Pogogyne serpylloides (Torr.) Gray FACW Thyme-Leaf Mesa-Mint

Pogogyne ziziphoroides Benth. OBL Sacramento Mesa-Mint

Polanisia dodecandra (L.) DC. FACU Red-Whisker Clammyw eed

Polemonium foliosissimum Gray FAC Tow ering Jacob's-Ladder

Polemonium micranthum Benth. FACU Annual Jacob's-Ladder

Polemonium occidentale Greene FACW Western Jacob's-Ladder

Polemonium pauciflorum S. Wats. FACW Few -Flow er Jacob's-Ladder

Polyctenium fremontii (S. Wats.) Greene FAC Desert Combleaf

Polygala ambigua Nutt. FACU Alternate Milkw ort

Polygala sanguinea L. FACU Purple Milkw ort

Polygala verticillata L. FACU Whorled Milkw ort

Polygonatum biflorum (Walt.) Ell. FACU King Solomon's-Seal

Polygonum achoreum Blake FACU Leathery Knotw eed

Polygonum argyrocoleon Steud. ex Kunze FAC Silver-Sheath Knotw eed

Polygonum austiniae Greene FACU Mrs. Austin's Knotw eed

Polygonum aviculare L. FAC Yard Knotw eed

Polygonum douglasii Greene FACU Douglas' Knotw eed

Polygonum engelmannii Greene FACU Engelmann's Knotw eed

Polygonum erectum L. FACU Erect Knotw eed

Polygonum fowleri B.L. Robins. FACW Fow ler's Knotw eed

Polygonum kelloggii Greene FACW Kellogg's Knotw eed

Polygonum majus (Meisn.) Piper FACU Wiry Knotw eed

Polygonum marinense Mert. & Raven OBL Marin Knotw eed

Polygonum minimum S. Wats. FACU Zigzag Knotw eed

Polygonum parryi Greene FAC Parry's Knotw eed

Polygonum patulum Bieb. FACW Bellard's Knotw eed

Polygonum polygaloides Wallich ex Meisn. FACW White-Margin Knotw eed

Polygonum ramosissimum Michx. FAC Yellow -Flow er Knotw eed

Polygonum sawatchense Small FACU Saw atch Knotw eed

Polygonum spergulariiforme Meisn. ex Small FACU Fall Knotw eed

Polygonum striatulum B.L. Robins. FACW Striped Knotw eed

Polypogon australis Brongn. FACW Chilean Rabbit's-Foot Grass

Polypogon elongatus Kunth OBL Streambank Rabbit's-Foot Grass

Polypogon fugax Nees ex Steud. FACU Hill Rabbit's-Foot Grass

Polypogon interruptus Kunth FACW Ditch Rabbit's-Foot Grass

Polypogon maritimus Willd. OBL Maritime Rabbit's-Foot Grass

Polypogon monspeliensis (L.) Desf. FACW Annual Rabbit's-Foot Grass

Polypogon viridis (Gouan) Breistr. FACW Beardless Rabbit's-Foot Grass

Polypremum procumbens L. FACU Juniper-Leaf

Polystichum lonchitis (L.) Roth FACU Northern Holly Fern

Polystichum munitum (Kaulfuss) K. Presl FACU Pineland Sw ord Fern

Pontederia cordata L. OBL Pickerelw eed

Populus X acuminata Rydb. (pro sp.) FAC

Populus X hinckleyana Correll (pro sp.) FAC

Populus angustifolia James FACW Narrow -Leaf Cottonw ood

Populus balsamifera L. FAC Balsam Poplar

Populus deltoides Bartr. ex Marsh. FAC Eastern Cottonw ood

Populus tremuloides Michx. FACU Quaking Aspen

Porterella carnosula (Hook. & Arn.) Torr. OBL Porterplant

Portulaca grandiflora Hook. UPL Rose-Moss

Portulaca halimoides L. FAC Silk-Cotton Purslane

Portulaca oleracea L. FAC Little-Hogw eed

Portulaca pilosa L. FACU Kiss-Me-Quick

Portulaca umbraticola Kunth FACU Wing-Pod Purslane

Potamogeton X faxonii Morong (pro sp.) OBL

Potamogeton X nericus Hagstr. OBL

Potamogeton X spathuliformis (J.W. Robbins) Morong (pro sp.) OBL

Potamogeton alpinus Balbis OBL Reddish Pondw eed

Potamogeton amplifolius Tuckerman OBL Large-Leaf Pondw eed

Potamogeton berchtoldii Fieber OBL Little Aguja Pondw eed

Potamogeton clystocarpus Fern. OBL Little Aguja Pondw eed

Potamogeton crispus L. OBL Curly Pondw eed

Potamogeton diversifolius Raf. OBL Waterthread

Potamogeton epihydrus Raf. OBL Ribbon-Leaf Pondw eed

Potamogeton foliosus Raf. OBL Leafy Pondw eed

Potamogeton friesii Rupr. OBL Flat-Stalk Pondw eed

Potamogeton gramineus L. OBL Grassy Pondw eed

Potamogeton illinoensis Morong OBL Illinois Pondw eed

Potamogeton natans L. OBL Broad-Leaf Pondw eed

Potamogeton nodosus Poir. OBL Long-Leaf Pondw eed

Potamogeton obtusifolius Mert. & Koch OBL Blunt-Leaf Pondw eed


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Potamogeton praelongus Wulfen OBL White-Stem Pondw eed

Potamogeton pusillus L. OBL Small Pondw eed

Potamogeton richardsonii (Benn.) Rydb. OBL Red-Head Pondw eed

Potamogeton robbinsii Oakes OBL Fern Pondw eed

Potamogeton strictifolius Benn. OBL Straight-Leaf Pondw eed

Potamogeton zosteriformis Fern. OBL Flat-Stem Pondw eed

Potentilla X nana Willd. ex Schlecht. FAC

Potentilla anserina L. OBL Silverw eed

Potentilla argentea L. FACU Silver-Leaf Cinquefoil

Potentilla basaltica Tiehm & Ertter FACW Soldier Meadow s Cinquefoil

Potentilla biennis Greene FACW Biennial Cinquefoil

Potentilla breweri S. Wats. FAC Brew er's Cinquefoil

Potentilla bruceae Rydb. FAC Bruce's Cinquefoil

Potentilla drummondii Lehm. FAC Drummond's Cinquefoil

Potentilla flabellifolia Hook. ex Torr. & Gray FACW Fringe-Leaf Cinquefoil

Potentilla glaucophylla Lehm. FACU Mountain-Meadow Cinquefoil

Potentilla gracilis Dougl. ex Hook. FAC Graceful Cinquefoil

Potentilla hickmanii Eastw . FACW Hickman's Cinquefoil

Potentilla indica (Andr.) T. Wolf UPL Indian-Straw berry

Potentilla millefolia Rydb. FACW Cut-Leaf Cinquefoil

Potentilla multijuga Lehm. OBL Ballona Cinquefoil

Potentilla newberryi Gray OBL New berry's Cinquefoil

Potentilla norvegica L. FAC Norw egian Cinquefoil

Potentilla pensylvanica L. FACU Pennsylvania Cinquefoil

Potentilla plattensis Nutt. FACW Platte River Cinquefoil

Potentilla pulcherrima Lehm. FAC Soft Cinquefoil

Potentilla rivalis Nutt. FACW Brook Cinquefoil

Potentilla rubricaulis Lehm. FACU Rocky Mountain Cinquefoil

Potentilla supina L. FACW Bushy Cinquefoil

Potentilla thurberi Gray FACW Scarlet Cinquefoil

Potentilla uliginosa B.C. Johnston & Ertter OBL Cunningham Marsh Cinquefoil

Poterium sanguisorba L. FACU

Primula alcalina Cholew a & D. Henderson OBL Blue-Dome Primrose

Primula angustifolia Torr. FACU Alpine Primrose

Primula capillaris N.& A. Holmgren FACW Ruby Mountain Primrose

Primula cusickiana (Gray) Gray FAC Wallow a Primrose

Primula egaliksensis Wormsk. ex Hornem. OBL Greenland Primrose

Primula incana M.E. Jones OBL Silvery Primrose

Primula parryi Gray FAC Brook Primrose

Primula rusbyi Greene FAC Rusby's Primrose

Primula suffrutescens Gray FAC Sierran Primrose

Proboscidea louisiana (P. Mill.) Thellung FACU Ram's-Horn

Prosartes trachycarpa S. Wats. FACU Rough-Fruit Fairybells

Prosopis glandulosa Torr. FACU Honey Mesquite

Prosopis pubescens Benth. FAC American Screw -Bean

Prosopis velutina Woot. FACU Velvet Mesquite

Prunella vulgaris L. FACU Common Selfheal

Prunus americana Marsh. FACU American Plum

Prunus avium (L.) L. FACU Sw eet Cherry

Prunus caroliniana Ait. FACU Carolina Laurel Cherry

Prunus emarginata (Dougl.) D. Dietr. FACU Bitter Cherry

Prunus pensylvanica L. f. FACU Fire Cherry

Prunus serotina Ehrh. FACU Black Cherry

Prunus virginiana L. FAC Choke Cherry

Psathyrostachys juncea (Fisch.) Nevski UPL Russian-Wild Rye

Psathyrotes annua (Nutt.) Gray FACU Mealy Turtleback

Pseudognaphalium canescens (DC.) A. Anderb. FACU Wright's Rabbit-Tobacco

Pseudognaphalium luteoalbum (L.) Hilliard & Burtt FAC Jersey Rabbit-Tobacco

Pseudognaphalium stramineum (Kunth) A. Anderb. FAC Cotton-Batting-Plant

Pseudotsuga menziesii (Mirbel) Franco FACU Douglas-Fir

Psidium cattleianum Sabine FACU Purple Straw berry Guava

Psidium guajava L. UPL Guava

Psilactis asteroides Gray FACW New Mexico Bare-Ray-Aster

Psilocarphus brevissimus Nutt. FACW Dw arf Woollyheads

Psilocarphus chilensis Gray FACW Chilean Woollyheads

Psilocarphus elatior (Gray) Gray FACW Tall Woollyheads

Psilocarphus oregonus Nutt. OBL Oregon Woollyheads

Psilocarphus tenellus Nutt. OBL Slender Woollyheads

Psilotum nudum (L.) Beauv. FACW Whisk Fern

Psorothamnus arborescens (Torr. ex Gray) Barneby FACU Mojave Smokebush

Ptelea trifoliata L. UPL Common Hoptree

Pteridium aquilinum (L.) Kuhn FACU Northern Bracken Fern

Pteris vittata L. FAC Ladder Brake

Ptilagrostis kingii (Boland.) Barkw orth FACU Sierran False Needle Grass

Puccinellia distans (Jacq.) Parl. FACW Spreading Alkali Grass


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Puccinellia fasciculata (Torr.) Bickn. OBL Saltmarsh Alkali Grass

Puccinellia howellii J.I. Davis OBL How ell's Alkali Grass

Puccinellia lemmonii (Vasey) Scribn. FACW Lemmon's Alkali Grass

Puccinellia lucida Fern. & Weatherby OBL Shining Alkali Grass

Puccinellia nutkaensis (J. Presl) Fern. & Weatherby OBL Nootka Alkali Grass

Puccinellia nuttalliana (J.A. Schultes) A.S. Hitchc. FACW Nuttall's Alkali Grass

Puccinellia parishii A.S. Hitchc. OBL Parish's Alkali Grass

Puccinellia pumila (Vasey) A.S. Hitchc. FACW Dw arf Alkali Grass

Puccinellia simplex Scribn. FACW California Alkali Grass

Pueraria montana (Lour.) Merr. UPL Kudzu

Pulicaria paludosa Link FAC Spanish False Fleabane

Pyrola asarifolia Michx. FAC Pink Wintergreen

Pyrola chlorantha Sw . FAC Green-Flow er Wintergreen

Pyrola elliptica Nutt. UPL Shinleaf

Pyrola minor L. FACU Snow line Wintergreen

Pyrrocoma hirta (Gray) Greene FAC Tacky Goldenw eed

Pyrrocoma lanceolata (Hook.) Greene FAC Lance-Leaf Goldenw eed

Pyrrocoma racemosa (Nutt.) Torr. & Gray FAC Clustered Goldenw eed

Pyrrocoma uniflora (Hook.) Greene FACW Plantain Goldenw eed

Quercus garryana Dougl. ex Hook. UPL Oregon White Oak

Quercus hemisphaerica Bartr. ex Willd. FACU Darlington's Oak

Quercus lobata Née FACU Valley Oak

Quercus macrocarpa Michx. FAC Burr Oak

Quercus muehlenbergii Engelm. FAC Chinkapin Oak

Quercus rubra L. FACU Northern Red Oak

Quercus virginiana P. Mill. FACU Live Oak

Quincula lobata (Torr.) Raf. FACU Chinese-Lantern

Raillardella pringlei Greene OBL Show y Raillardella

Raillardella scaposa (Gray) Gray FACU Green-Leaf Raillardella

Ranunculus abortivus L. FACW Kidney-Leaf Buttercup

Ranunculus acriformis Gray FACW Sharp-Leaf Buttercup

Ranunculus acris L. FACW Tall Buttercup

Ranunculus adoneus Gray FACW Alpine Buttercup

Ranunculus aestivalis (L. Benson) Van Buren & Harper FACW Fall Buttercup

Ranunculus alismifolius Geyer ex Benth. FACW Water-Plantain Buttercup

Ranunculus aquatilis L. OBL White Water-Crow foot

Ranunculus arcticus Richards. FAC Northern Buttercup

Ranunculus arvensis L. FACU Hungerw eed

Ranunculus bonariensis Poir. OBL Carter's Buttercup

Ranunculus bulbosus L. FAC St. Anthony's-Turnip

Ranunculus californicus Benth. FACU California Buttercup

Ranunculus canus Benth. FAC Sacramento Valley Buttercup

Ranunculus cardiophyllus Hook. FACW Heart-Leaf Buttercup

Ranunculus eschscholtzii Schlecht. FAC Spruce-Fir Buttercup

Ranunculus flabellaris Raf. OBL Greater Yellow Water Buttercup

Ranunculus flammula L. OBL Greater Creeping Spearw ort

Ranunculus glaberrimus Hook. FAC Sagebrush Buttercup

Ranunculus gmelinii DC. FACW Lesser Yellow Water Buttercup

Ranunculus gormanii Greene FACW Gorman's Buttercup

Ranunculus grayi Britt. FAC Arctic Buttercup

Ranunculus hydrocharoides Gray OBL Frog-Bit Buttercup

Ranunculus hyperboreus Rottb. OBL Far-Northern Buttercup

Ranunculus inamoenus Greene FACW Graceful Buttercup

Ranunculus jovis A. Nels. FAC Hillside Buttercup

Ranunculus lobbii (Hiern.) Gray OBL Lobb's Water-Crow foot

Ranunculus longirostris Godr. OBL Long-Beak Water-Crow foot

Ranunculus macauleyi Gray FACW Rocky Mountain Buttercup

Ranunculus macounii Britt. OBL Macoun's Buttercup

Ranunculus muricatus L. FACW Spiny-Fruit Buttercup

Ranunculus occidentalis Nutt. FAC Western Buttercup

Ranunculus oreogenes Greene FACU Oregon Buttercup

Ranunculus orthorhynchus Hook. FACW Straight-Beak Buttercup

Ranunculus parviflorus L. FAC Small-Flow er Buttercup

Ranunculus pensylvanicus L. f. FACW Pennsylvania Buttercup

Ranunculus populago Greene OBL Mountain Buttercup

Ranunculus pusillus Poir. OBL Low Spearw ort

Ranunculus pygmaeus Wahlenb. FACW Dw arf Buttercup

Ranunculus repens L. FAC Creeping Buttercup

Ranunculus sardous Crantz FACW Hairy Buttercup

Ranunculus sceleratus L. OBL Cursed Buttercup

Ranunculus subrigidus W. Drew OBL Short-Beak Water-Crow foot

Ranunculus sulphureus Soland. ex C.J. Phipps FACW Sulphur Buttercup

Ranunculus trichophyllus Chaix OBL Thread-Leaf Water-Crow foot

Ranunculus trilobus Desf. FACU Three-Lobe Buttercup

Ranunculus uncinatus D. Don ex G. Don FAC Woodland Buttercup


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Reynoutria X bohemica Chrtek & Chrtková FACU

Reynoutria japonica Houtt. FACU Japanese-Knotw eed

Reynoutria sachalinensis (F. Schmidt) Nakai FACU Giant-Knotw eed

Rhamnus alaternus L. FACU Evergreen Buckthorn

Rhamnus alnifolia L'Hér. OBL Alder-Leaf Buckthorn

Rhamnus cathartica L. FAC European Buckthorn

Rhinanthus minor L. FACU Little Yellow -Rattle

Rhinotropis cornuta (Kellogg) J.R. Abbott FACW Sierran Desert-Milkw ort

Rhodiola integrifolia Raf. FACU Entire-Leaf Rosew ort

Rhodiola rhodantha (Gray) Jacobsen FACW Queen's-Crow n

Rhododendron albiflorum Hook. FACU Cascade Azalea

Rhododendron columbianum (Piper) Harmaja FACW Western Labrador-Tea

Rhododendron macrophyllum D. Don ex G. Don FACU California Rhododendron

Rhododendron occidentale (Torr. & Gray ex Torr.) Gray FAC Western Azalea

Rhododendron prinophyllum (Small) Millais FAC Early Azalea

Rhus aromatica Ait. FACU Fragrant Sumac

Rhus copallinum L. FACU Winged Sumac

Rhynchospora alba (L.) Vahl OBL White Beak Sedge

Rhynchospora brachychaeta C. Wright FACW West Indian Beak Sedge

Rhynchospora californica Gale OBL California Beak Sedge

Rhynchospora capitellata (Michx.) Vahl OBL Brow nish Beak Sedge

Rhynchospora globularis (Chapman) Small OBL Globe Beak Sedge

Rhynchospora recognita (Gale) Kral FACW Coarse Globe Beak Sedge

Ribes acerifolium T.J. How ell FACU Maple-Leaf Currant

Ribes americanum P. Mill. FACW Wild Black Currant

Ribes aureum Pursh FAC Golden Currant

Ribes bracteosum Dougl. ex Hook. FAC California Black Currant

Ribes divaricatum Dougl. FAC Coastal Black Gooseberry

Ribes hudsonianum Richards. FACW Northern Black Currant

Ribes inerme Rydb. FAC White-Stem Gooseberry

Ribes lacustre (Pers.) Poir. FACW Bristly Black Gooseberry

Ribes laxiflorum Pursh FACU Trailing Black Currant

Ribes lobbii Gray FACU Oregon Gooseberry

Ribes nevadense Kellogg FAC Sierran Currant

Ribes oxyacanthoides L. FACU Canadian Gooseberry

Ribes sanguineum Pursh UPL Blood Currant

Ribes thacherianum (Jepson) Munz FACU Santa Cruz Gooseberry

Ribes triste Pallas OBL Sw amp Red Currant

Ribes viscosissimum Pursh FAC Sticky Currant

Ribes wolfii Rothrock FAC Winaha Currant

Ricinus communis L. FACU Castor-Bean

Rivina humilis L. FAC Rougeplant

Robinia pseudoacacia L. FACU Black Locust

Romanzoffia californica Greene FAC California Mistmaiden

Romanzoffia sitchensis Bong. FACW Sitka Mistmaiden

Rorippa austriaca (Crantz) Bess. FACW Austrian Yellow cress

Rorippa calycina (Engelm.) Rydb. FACW Persistent-Sepal Yellow cress

Rorippa columbiae (Suksdorf ex S. Wats.) Suksdorf ex T.J. How ellOBL Columbian Yellow cress

Rorippa curvipes Greene FACW Blunt-Leaf Yellow cress

Rorippa curvisiliqua (Hook.) Bess. ex Britt. OBL Curve-Pod Yellow cress

Rorippa dubia (Pers.) Hara FAC

Rorippa microtitis (B.L. Robins.) Rollins FACW Chihuahuan Yellow cress

Rorippa palustris (L.) Bess. OBL Bog Yellow cress

Rorippa ramosa Rollins FACW Durango Yellow cress

Rorippa sinuata (Nutt.) A.S. Hitchc. FACW Spreading Yellow cress

Rorippa sphaerocarpa (Gray) Britt. FACW Round-Fruit Yellow cress

Rorippa subumbellata Rollins OBL Lake Tahoe Yellow cress

Rorippa sylvestris (L.) Bess. OBL Creeping Yellow cress

Rorippa tenerrima Greene FAC Modoc Yellow cress

Rorippa teres (Michx.) R. Stuckey FACW Southern Marsh Yellow cress

Rosa acicularis Lindl. FACU Prickly Rose

Rosa arkansana Porter FACU Prairie Rose

Rosa californica Cham. & Schlecht. FAC California Rose

Rosa gymnocarpa Nutt. FACU Bald-Hip Rose

Rosa micrantha Borrer ex Sm. FACU Small-Flow er Sw eetbrier

Rosa multiflora Thunb. ex Murr. FACU Rambler Rose

Rosa nutkana K. Presl FACU Nootka Rose

Rosa pisocarpa Gray FAC Clustered Rose

Rosa rubiginosa L. UPL Sw eetbrier

Rosa woodsii Lindl. FACU Woods' Rose

Rotala indica (Willd.) Koehne OBL Indian Toothcup

Rotala ramosior (L.) Koehne OBL Low land Toothcup

Rottboellia cochinchinensis (Lour.) W.D. Clayton FAC Itch Grass

Rubus allegheniensis Porter FACU Allegheny Blackberry

Rubus arcticus L. FAC Northern Blackberry


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Rubus arizonensis Focke FACU Arizona Dew berry

Rubus armeniacus Focke FAC Himalayan Blackberry

Rubus bartonianus M.E. Peck FACW Barton's Raspberry

Rubus flagellaris Willd. FACU Whiplash Dew berry

Rubus idaeus L. FACU Common Red Raspberry

Rubus laciniatus Willd. FACU Cut-Leaf Blackberry

Rubus lasiococcus Gray FACU Hairy-Fruit Smooth Dew berry

Rubus leucodermis Dougl. ex Torr. & Gray FACU White-Stem Raspberry

Rubus parviflorus Nutt. FAC Western Thimble-Berry

Rubus pedatus Sm. FACU Straw berry-Leaf Raspberry

Rubus pensilvanicus Poir. FAC Pennsylvania Blackberry

Rubus phoenicolasius Maxim. FACU Wine Raspberry

Rubus pubescens Raf. FAC Dw arf Red Raspberry

Rubus spectabilis Pursh FAC Salmon Raspberry

Rubus ursinus Cham. & Schlecht. FAC California Dew berry

Rudbeckia alpicola Piper FACW Show y Coneflow er

Rudbeckia californica Gray FACW California Coneflow er

Rudbeckia glaucescens Eastw . FACW Waxy Coneflow er

Rudbeckia hirta L. FACU Black-Eyed-Susan

Rudbeckia klamathensis P. Cox & Urbatsch FACW Klamath Coneflow er

Rudbeckia laciniata L. FAC Green-Head Coneflow er

Rudbeckia montana Gray FACW Montane Coneflow er

Rudbeckia occidentalis Nutt. FAC Western Coneflow er

Rudbeckia triloba L. FACU Brow n-Eyed-Susan

Rumex acetosa L. FAC Garden Sorrel

Rumex acetosella L. FACU Common Sheep Sorrel

Rumex altissimus Wood FACW Pale Dock

Rumex britannica L. OBL Greater Water Dock

Rumex californicus Rech. f. FACW California Willow Dock

Rumex conglomeratus Murr. FACW Sharp Dock

Rumex crassus Rech. f. FACW Fleshy Willow Dock

Rumex crispus L. FAC Curly Dock

Rumex densiflorus Osterhout FACW Dense-Flow er Dock

Rumex dentatus L. FACW Toothed Dock

Rumex fueginus Phil. FACW Tierra del Fuego Dock

Rumex hastatulus Baldw . FAC Heart-Wing Sorrel

Rumex hesperius Greene FACW Western Willow dock

Rumex kerneri Borbás FACW Kerner's Dock

Rumex lacustris Greene OBL Lake Willow Dock

Rumex lapponicus (Hiitonen) Czernov FAC Lapland Sorrel

Rumex mexicanus Meisn. FAC Mexican Dock

Rumex obtusifolius L. FAC Bitter Dock

Rumex occidentalis S. Wats. FACW Western Dock

Rumex palustris Sm. FACW Marsh Dock

Rumex paucifolius Nutt. FAC Alpine Sheep Sorrel

Rumex persicarioides L. FACW Coastal Dock

Rumex pulcher L. FAC Fiddle Dock

Rumex salicifolius Weinm. FACW Willow Dock

Rumex spiralis Small FAC Winged Dock

Rumex stenophyllus Ledeb. FACW Narrow -Leaf Dock

Rumex transitorius Rech. f. FACW Pacif ic Willow Dock

Rumex triangulivalvis (Danser) Rech. f. FACW Triangular-Valved Dock

Rumex venosus Pursh UPL Veiny Dock

Rumex verticillatus L. FACW Sw amp Dock

Rumex violascens Rech. f. FACW Violet Dock

Ruppia cirrhosa (Petag.) Grande OBL Spiral Ditch-Grass

Ruppia maritima L. OBL Beaked Ditch-Grass

Sabatia angularis (L.) Pursh FAC Rose-Pink

Saccharum ravennae (L.) L. FAC Ranenna Grass

Sagina apetala Ard. FAC Annual Pearlw ort

Sagina decumbens (Ell.) Torr. & Gray FACU Trailing Pearlw ort

Sagina maxima Gray FAC Sticky-Stem Pearlw ort

Sagina procumbens L. FAC Bird-Eye Pearlw ort

Sagina saginoides (L.) Karst. FACW Alpine Pearlw ort

Sagittaria brevirostra Mackenzie & Bush OBL Short-Beak Arrow head

Sagittaria calycina Engelm. OBL Hooded Arrow head

Sagittaria cuneata Sheldon OBL Arum-Leaf Arrow head

Sagittaria latifolia Willd. OBL Duck-Potato

Sagittaria longiloba Engelm. ex J.G. Sm. OBL Long-Barb Arrow head

Sagittaria rigida Pursh OBL Sessile-Fruit Arrow head

Sagittaria sanfordii Greene OBL Valley Arrow head

Salicornia bigelovii Torr. OBL Dw arf Saltw ort

Salicornia depressa Standl. OBL Woody Saltw ort

Salicornia rubra A. Nels. OBL Red Saltw ort

Salix X fragilis L. FAC


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Salix X pendulina Wenderoth FACW

Salix X sepulcralis Simonkai FACW

Salix alba L. FACW White Willow

Salix amygdaloides Anderss. FACW Peach-Leaf Willow

Salix arctica Pallas FAC Arctic Willow

Salix arizonica Dorn OBL Arizona Willow

Salix babylonica L. FAC Chinese Willow

Salix barclayi Anderss. FACW Barclay's Willow

Salix barrattiana Hook. FACW Barratt's Willow

Salix bebbiana Sarg. FACW Gray Willow

Salix bonplandiana Kunth FACW Red Willow

Salix boothii Dorn FACW Booth's Willow

Salix brachycarpa Nutt. FACW Short-Fruit Willow

Salix breweri Bebb FAC Brew er's Willow

Salix candida Flueggé ex Willd. OBL Sage Willow

Salix caprea L. FACW Goat Willow

Salix cascadensis Cockerell FACU Cascade Willow

Salix columbiana (Dorn) Argus FACW

Salix commutata Bebb OBL Under-Green Willow

Salix delnortensis Schneid. FAC Del Norte Willow

Salix discolor Muhl. FACW Pussy Willow

Salix drummondiana Barratt ex Hook. FACW Drummond's Willow

Salix eastwoodiae Cockerell ex Heller FACW Sierran Willow

Salix exigua Nutt. FACW Narrow -Leaf Willow

Salix exilifolia Dorn FACW Yew -Leaf Willow

Salix famelica (Ball) Argus FACW

Salix farriae Ball OBL Farr's Willow

Salix geyeriana Anderss. OBL Geyer's Willow

Salix glauca L. FACW Gray-Leaf Willow

Salix gooddingii Ball FACW Goodding's Black Willow

Salix hookeriana Barratt ex Hook. FACW Coastal Willow

Salix interior Row lee FACW Sandbar Willow

Salix irrorata Anderss. FACW Dew y-Stem Willow

Salix jepsonii Schneid. OBL Jepson's Willow

Salix laevigata Bebb FACW Polished Willow

Salix lasiandra Benth. FACW Pacif ic Willow

Salix lasiolepis Benth. FACW Arroyo Willow

Salix lemmonii Bebb FACW Lemmon's Willow

Salix ligulifolia (Ball) Ball ex Schneid. FACW Strap-Leaf Willow

Salix lutea Nutt. OBL Yellow Willow

Salix maccalliana Row lee FACW Mccalla's Willow

Salix melanopsis Nutt. OBL Dusky Willow

Salix monochroma Ball FACW One-Color Willow

Salix monticola Bebb OBL Park Willow

Salix myrtillifolia Anderss. FACW Blueberry Willow

Salix nigra Marsh. OBL Black Willow

Salix nivalis Hook. FACW Snow Willow

Salix orestera Schneid. FACW Gray-Leaf Sierran Willow

Salix pedicellaris Pursh OBL Bog Willow

Salix planifolia Pursh OBL Tea-Leaf Willow

Salix prolixa Anderss. OBL Mackenzie's Willow

Salix pseudomonticola Ball FACW False Mountain Willow

Salix purpurea L. FACW Purple Willow

Salix reticulata L. FAC Net-Vein Willow

Salix rotundifolia Trautv. FACW Round-Leaf Willow

Salix scouleriana Barratt ex Hook. FAC Scouler's Willow

Salix serissima (Bailey) Fern. OBL Autumn Willow

Salix sitchensis Sanson ex Bong. FACW Sitka Willow

Salix thurberi Row lee FAC

Salix tweedyi (Bebb ex Rose) Ball FACW Tw eedy's Willow

Salix vestita Pursh FAC Rock Willow

Salix viminalis L. FACW Basket Willow

Salix wolfii Bebb OBL Idaho Willow

Salsola soda L. FACW Opposite-Leaf Russian-Thistle

Salsola tragus L. FACU Prickly Russian-Thistle

Salvia lycioides Gray FACU Canyon Sage

Salvinia minima Baker OBL Water-Spangles

Salvinia molesta Mitchell OBL Kariba-Weed

Salvinia oblongifolia Mart. OBL Oblong-Leaf Water-Moss

Sambucus nigra L. FACU Black Elder

Sambucus racemosa L. FACU Red Elder

Samolus ebracteatus Kunth FACW Limew ater Brookw eed

Samolus parviflorus Raf. OBL

Samolus vagans Greene OBL Chiricahua Mountain Brookw eed

Sanguisorba canadensis L. FACW Canadian Burnet


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Sanguisorba officinalis L. FACW Great Burnet

Sanicula marilandica L. FAC Maryland Black-Snakeroot

Sanicula maritima Kellogg ex S. Wats. FACW Adobe Black-Snakeroot

Sapindus saponaria L. FACU Wing-Leaf Soapberry

Saponaria officinalis L. FACU Bouncing-Bett

Sarcobatus vermiculatus (Hook.) Torr. FACU Greasew ood

Sarcocornia pacifica (Standl.) A.J. Scott OBL Pacif ic Sw ampfire

Sarcocornia utahensis (Tidestrom) A.J. Scott OBL Utah Sw ampfire

Sarracenia purpurea L. OBL Purple Pitcherplant

Sarracenia rubra Walt. OBL Sw eet Pitcherplant

Saussurea americana D.C. Eat. FACW American Saw -Wort

Saxifraga adscendens L. FACW Wedge-Leaf Saxifrage

Saxifraga austromontana Wieg. FACU Matted Saxifrage

Saxifraga caespitosa L. FAC Tufted Alpine Saxifrage

Saxifraga cernua L. FACW Nodding Saxifrage

Saxifraga chrysantha Gray FACU Golden Saxifrage

Saxifraga hirculus L. OBL Yellow Marsh Saxifrage

Saxifraga mertensiana Bong. FACW Woodland Saxifrage

Saxifraga oppositifolia L. FACU Purple Mountain Saxifrage

Saxifraga rivularis L. FACW Alpine-Brook Saxifrage

Saxifraga vespertina (Small) Fedde FACU Yellow -Dot Saxifrage

Sceptridium multifidum (Gmel.) Nishida ex Tagaw a FAC Leathery Grape Fern

Schedonorus arundinaceus (Schreb.) Dumort. FACU Tall False Rye Grass

Schedonorus pratensis (Huds.) Beauv. FACU Meadow False Rye Grass

Scheuchzeria palustris L. OBL Rannoch-Rush

Schinus molle L. FACU Peruvian Peppertree

Schinus terebinthifolia Raddi FAC Brazilian Peppertree

Schizachne purpurascens (Torr.) Sw allen FACU False Melic Grass

Schizachyrium littorale (Nash) Bickn. FACU Dune False Bluestem

Schizachyrium scoparium (Michx.) Nash FACU Little False Bluestem

Schoenoplectus acutus (Muhl. ex Bigelow ) A.& D. Löve OBL Hard-Stem Club-Rush

Schoenoplectus americanus (Pers.) Volk. ex Schinz & R. Keller OBL Chairmaker's Club-Rush

Schoenoplectus californicus (C.A. Mey.) Palla OBL California Club-Rush

Schoenoplectus fluviatilis (Torr.) M.T. Strong OBL River Club-Rush

Schoenoplectus glaucus (Lam.) Kartesz OBL Tuberous Club-Rush

Schoenoplectus heterochaetus (Chase) Soják OBL Pale Great Club-Rush

Schoenoplectus maritimus (L.) Lye OBL Saltmarsh Club-Rush

Schoenoplectus mucronatus (L.) Palla OBL Bog Club-Rush

Schoenoplectus pungens (Vahl) Palla OBL Three-Square

Schoenoplectus robustus (Pursh) M.T. Strong OBL Seaside Club-Rush

Schoenoplectus saximontanus (Fern.) Raynal OBL Rocky Mountain Club-Rush

Schoenoplectus subterminalis (Torr.) Soják OBL Sw aying Club-Rush

Schoenoplectus tabernaemontani (K.C. Gmel.) Palla OBL Soft-Stem Club-Rush

Schoenus nigricans L. OBL Black Bog-Rush

Scilla luciliae (Boiss.) Speta FACU Boissier's Glory-of-the-Snow

Scirpus atrocinctus Fern. OBL Black-Girdle Bulrush

Scirpus atrovirens Willd. OBL Dark-Green Bulrush

Scirpus congdonii Britt. FACW Congdon's Bulrush

Scirpus cyperinus (L.) Kunth OBL Cottongrass Bulrush

Scirpus diffusus Schuyler FACW Umbrella Bulrush

Scirpus microcarpus J.& K. Presl OBL Red-Tinge Bulrush

Scirpus nevadensis S. Wats. OBL Nevada Bulrush

Scirpus pallidus (Britt.) Fern. OBL Pale Bulrush

Scirpus pendulus Muhl. OBL Rufous Bulrush

Scleranthus annuus L. FACU Annual Knaw el

Sclerolinon digynum (Gray) Rogers FACW Northw estern Yellow -Flax

Scolochloa festucacea (Willd.) Link OBL Common River Grass

Scorzoneroides autumnalis (L.) Moench FAC August-Flow er

Scrophularia atrata Pennell FACU Black-Flow er Figw ort

Scrophularia californica Cham. & Schlecht. FAC California Figw ort

Scrophularia lanceolata Pursh FAC Lance-Leaf Figw ort

Scutellaria bolanderi Gray FACW Sierran Skullcap

Scutellaria galericulata L. OBL Hooded Skullcap

Scutellaria lateriflora L. FACW Mad Dog Skullcap

Scutellaria siphocampyloides Vatke FACU Gray-Leaf Skullcap

Sedella leiocarpa H.K. Sharsmith FAC Lake County Mock Stonecrop

Sedella pumila (Benth.) Britt. & Rose FAC Sierran Mock Stonecrop

Selaginella kraussiana (Kunze) A. Braun FACW Krauss' Spike-Moss

Selaginella selaginoides (L.) Beauv. ex Mart. & Schrank FACW Northern Spike-Moss

Selenia dissecta Torr. & Gray FACW Texas Selenia

Selenia jonesii Cory FACW Jones' Selenia

Senecio amplectens Gray FACW Show y Alpine Ragw ort

Senecio clarkianus Gray FACW Clark's Ragw ort

Senecio cliffordii Atw ood & Welsh UPL Clifford's Ragw ort

Senecio crassulus Gray FACU Thick-Leaf Ragw ort


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Senecio eremophilus Richards. FACU Desert Ragw ort

Senecio hieraciifolius L. FACU American Burnw eed

Senecio hydrophiloides Rydb. FACW Stout Meadow Ragw ort

Senecio hydrophilus Nutt. OBL Alkali-Marsh Ragw ort

Senecio integerrimus Nutt. FACU Lamb-Tongue Ragw ort

Senecio lugens Richards. FAC Small Black-Tip Ragw ort

Senecio minimus Poir. FACU Coastal Burnw eed

Senecio scorzonella Greene FAC Sierran Ragw ort

Senecio serra Hook. FACU Tall Ragw ort

Senecio sphaerocephalus Greene FACW Mountain-Marsh Ragw ort

Senecio sylvaticus L. UPL Woodland Ragw ort

Senecio triangularis Hook. FACW Arrow -Leaf Ragw ort

Senecio vulgaris L. FACU Old-Man-in-the-Spring

Senegalia greggii (Gray) Britt. & Rose FACU Long-Flow er Catclaw

Senna hirsuta (L.) Irw in & Barneby FACU Woolly Wild Sensitive-Plant

Senna obtusifolia (L.) Irw in & Barneby UPL Coffeew eed

Senna pendula (Humb. & Bonpl. ex Willd.) Irw in & Barneby FAC Valamuerto

Sesbania emerus (Aubl.) Urban FAC Danglepod

Sesbania herbacea (P. Mill.) McVaugh FACW Peatree

Sesbania punicea (Cav.) Benth. FACW Purple River-Hemp

Sesuvium maritimum (Walt.) B.S.P. FACW Slender Sea-Purslane

Sesuvium portulacastrum (L.) L. FACW Shoreline Sea-Purslane

Sesuvium verrucosum Raf. FACW Verrucose Sea-Purslane

Setaria adhaerens (Forssk.) Chiov. FACU Adherent Bristle Grass

Setaria faberi Herrm. UPL Japanese Bristle Grass

Setaria italica (L.) Beauv. FACU Italian Bristle Grass

Setaria magna Griseb. FACW Giant Bristle Grass

Setaria parviflora (Poir.) Kerguélen FAC Marsh Bristle Grass

Setaria pumila (Poir.) Roemer & J.A. Schultes FAC Yellow Bristle Grass

Setaria sphacelata (Schumacher) Moss ex Stapf & C.E. Hubbard OBL African Bristle Grass

Setaria verticillata (L.) Beauv. FACU Rough Bristle Grass

Setaria verticilliformis Dumort. FAC Forew ard-Barb Bristle Grass

Seymeria cassioides (J.F. Gmel.) Blake FAC Yaupon Black-Senna

Shepherdia argentea (Pursh) Nutt. FACU Silver Buffalo-Berry

Shepherdia canadensis (L.) Nutt. UPL Russet Buffalo-Berry

Sibbaldia procumbens L. FACU Creeping-Glow -Wort

Sida acuta Burm. f. UPL Common-Wirew eed

Sida rhombifolia L. FACU Cuban-Jute

Sida spinosa L. UPL Prickly Fanpetals

Sidalcea calycosa M.E. Jones OBL Annual Checkerbloom

Sidalcea campestris Greene FACU Meadow Checkerbloom

Sidalcea candida Gray FACW White Checkerbloom

Sidalcea covillei Greene FACU Ow ens Valley Checkerbloom

Sidalcea cusickii Piper FACW Cusick's Checkerbloom

Sidalcea hirsuta Gray ex Benth. OBL Hairy Checkerbloom

Sidalcea malviflora (DC.) Gray ex Benth. FACW Dw arf Checkerbloom

Sidalcea neomexicana Gray FACW Rocky Mountain Checkerbloom

Sidalcea oregana (Nutt. ex Torr. & Gray) Gray FACW Oregon Checkerbloom

Sidalcea pedata Gray OBL Mountain Checkerbloom

Sidalcea ranunculacea Greene OBL Marsh Checkerbloom

Sidalcea reptans Greene OBL Sierran Checkerbloom

Sidalcea stipularis J.T. How ell & True OBL Scadden Flat Checkerbloom

Sideroxylon lanuginosum Michx. FACU Gum Bully

Silene acaulis (L.) Jacq. UPL Cushion-Pink

Silene menziesii Hook. FAC White Catchfly

Silene uralensis (Rupr.) Bocquet FACW Apetalous Catchfly

Silphium perfoliatum L. FACW Cup-Plant

Sinapis alba L. FAC White-Mustard

Sisymbrium altissimum L. FACU Tall Hedge-Mustard

Sisyrinchium bellum S. Wats. FACW California Blue-Eyed-Grass

Sisyrinchium californicum (Ker-Gaw l.) Dry. FACW Golden Blue-Eyed-Grass

Sisyrinchium cernuum (Bickn.) Kearney FAC Nodding Blue-Eyed-Grass

Sisyrinchium demissum Greene OBL Stiff Blue-Eyed-Grass

Sisyrinchium elmeri Greene OBL Elmer's Blue-Eyed-Grass

Sisyrinchium funereum Bickn. FACW Funeral Mountain Blue-Eyed-Grass

Sisyrinchium halophilum Greene FACW Nevada Blue-Eyed-Grass

Sisyrinchium idahoense Bickn. FACW Idaho Blue-Eyed-Grass

Sisyrinchium longipes (Bickn.) Kearney & Peebles FACW Timberland Blue-Eyed-Grass

Sisyrinchium minus Engelm. & Gray FACU Dw arf Blue-Eyed-Grass

Sisyrinchium montanum Greene FACW Strict Blue-Eyed-Grass

Sisyrinchium sarmentosum Suksdorf ex Greene OBL Mountain Blue-Eyed-Grass

Sisyrinchium septentrionale Bickn. FACW Northern Blue-Eyed-Grass

Sium suave Walt. OBL Hemlock Water-Parsnip

Smilax jamesii G. Wallace FACW English Peak Greenbrier

Solanum americanum P. Mill. FACU American Black Nightshade


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Solanum carolinense L. FACU Carolina Horse-Nettle

Solanum douglasii Dunal FAC Green-Spot Nightshade

Solanum dulcamara L. FAC Climbing Nightshade

Solanum nigrum L. FACU European Black Nightshade

Solanum ptychanthum Dunal FACU Eastern Black Nightshade

Solidago altissima L. FACU Tall Goldenrod

Solidago confinis Gray OBL Southern Goldenrod

Solidago elongata Nutt. FACU Cascade Canada Goldenrod

Solidago gigantea Ait. FACW Late Goldenrod

Solidago lepida DC. FAC Western Canada Goldenrod

Solidago multiradiata Ait. FACU Rocky Mountain Goldenrod

Solidago rigida L. FACU Hard-Leaf Flat-Top-Goldenrod

Solidago simplex Kunth FACU Mt. Albert Goldenrod

Solidago spathulata DC. FACU Coast Goldenrod

Solidago spectabilis (D.C. Eat.) Gray FACW Nevada Goldenrod

Soliva sessilis Ruiz & Pavón FACU Law n Burrw eed

Sonchus arvensis L. FACU Field Sow -Thistle

Sonchus asper (L.) Hill FAC Spiny-Leaf Sow -Thistle

Sonchus oleraceus L. UPL Common Sow -Thistle

Sorbus scopulina Greene FACU Cascade Mountain-Ash

Sorbus sitchensis M. Roemer FAC Sitka Mountain-Ash

Sorghastrum nutans (L.) Nash FACU Yellow Indian Grass

Sorghum bicolor (L.) Moench FACU Broom-Corn

Sorghum halepense (L.) Pers. FACU Johnson Grass

Sparganium angustifolium Michx. OBL Narrow -Leaf Burr-Reed

Sparganium emersum Rehmann OBL European Burr-Reed

Sparganium eurycarpum Engelm. ex Gray OBL Broad-Fruit Burr-Reed

Sparganium natans L. OBL Arctic Burr-Reed

Spartina alterniflora Loisel. OBL Saltw ater Cord Grass

Spartina densiflora Brongn. OBL Dense-Flow er Cord Grass

Spartina foliosa Trin. OBL California Cord Grass

Spartina gracilis Trin. FACW Alkali Cord Grass

Spartina patens (Ait.) Muhl. OBL Salt-Meadow Cord Grass

Spartina pectinata Bosc ex Link OBL Freshw ater Cord Grass

Spergularia atrosperma R.P. Rossb. FACW Black-Seed Sandspurry

Spergularia bocconi (Scheele) Graebn. FACW Boccone's Sandspurry

Spergularia canadensis (Pers.) G. Don FACW Canadian Sandspurry

Spergularia diandra (Guss.) Held. FACW Alkali Sandspurry

Spergularia echinosperma Celak. OBL Bristle-Seed Sandspurry

Spergularia macrotheca (Hornem. ex Cham. & Schlecht.) Heynh. FAC Sticky Sandspurry

Spergularia marina (L.) Griseb. OBL Saltmarsh Sandspurry

Spergularia media (L.) K. Presl ex Griseb. FACW Satin-Flow er

Spergularia platensis (Camb.) Fenzl OBL La Plata Sandspurry

Spergularia rubra (L.) J.& K. Presl FAC Ruby Sandspurry

Spermolepis divaricata (Walt.) Raf. ex Ser. FACW Rough-Fruit Scaleseed

Spermolepis echinata (Nutt. ex DC.) Heller FACU Bristly-Fruit Scaleseed

Sphaerophysa salsula (Pallas) DC. FACU Red Bladder-Vetch

Sphenopholis intermedia (Rydb.) Rydb. FAC Slender Wedgescale

Sphenopholis obtusata (Michx.) Scribn. FAC Prairie Wedgescale

Sphenosciadium capitellatum Gray FACW Sw amp Whiteheads

Spinulum annotinum (L.) A. Haines FAC Interrupted Club-Moss

Spiraea X hitchcockii Hess & Stoynoff FAC

Spiraea betulifolia Pallas FACU Shiny-Leaf Meadow sw eet

Spiraea douglasii Hook. FACW Douglas' Meadow sw eet

Spiranthes delitescens Sheviak OBL Madrean Ladies'-Tresses

Spiranthes diluvialis Sheviak FACW Diluvim Ladies'-Tresses

Spiranthes infernalis Sheviak FACW Ash Meadow s Ladies'-Tresses

Spiranthes magnicamporum Sheviak FAC Great Plains Ladies'-Tresses

Spiranthes porrifolia Lindl. FACW Western Ladies'-Tresses

Spiranthes romanzoffiana Cham. FACW Hooded Ladies'-Tresses

Spirodela polyrhiza (L.) Schleid. OBL Common Duckmeat

Sporobolus airoides (Torr.) Torr. FAC Alkali-Sacaton

Sporobolus cryptandrus (Torr.) Gray FACU Sand Dropseed

Sporobolus diandrus (Retz.) Beauv. UPL Tussock Dropseed

Sporobolus flexuosus (Thurb. ex Vasey) Rydb. FACU Mesa Dropseed

Sporobolus giganteus Nash FACU Giant Dropseed

Sporobolus indicus (L.) R. Br. FACU Smut Grass

Sporobolus neglectus Nash UPL Small Dropseed

Sporobolus pyramidatus (Lam.) A.S. Hitchc. FACU Target Dropseed

Sporobolus texanus Vasey FACW Texas Dropseed

Sporobolus wrightii Munro ex Scribn. FAC Wright's Dropseed

Stachys ajugoides Benth. OBL Bugle Hedge-Nettle

Stachys albens Gray OBL White-Stem Hedge-Nettle

Stachys chamissonis Benth. OBL Coastal Hedge-Nettle

Stachys coccinea Ortega FAC Scarlet Hedge-Nettle


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Stachys crenata Raf. FAC Mouse's-Ear

Stachys floridana Shuttlw . ex Benth. FAC Florida Hedge-Nettle

Stachys mexicana Benth. FACW Mexican Hedge-Nettle

Stachys pilosa Nutt. FACW Hairy Hedge-Nettle

Stachys pycnantha Benth. FACW Short-Spike Hedge-Nettle

Stachys rigida Nutt. ex Benth. FACW Rough Hedge-Nettle

Stachys stricta Greene OBL Sonoma Hedge-Nettle

Steinchisma hians (Ell.) Nash FACW Gaping Grass

Stellaria alsine Grimm OBL Bog Chickw eed

Stellaria borealis Bigelow FACW Boreal Starw ort

Stellaria calycantha (Ledeb.) Bong. FACW Northern Bog Starw ort

Stellaria crassifolia Ehrh. FACW Fleshy Starw ort

Stellaria crispa Cham. & Schlecht. FAC Ruffled Starw ort

Stellaria cuspidata Willd. ex Schlecht. FAC Mexican Starw ort

Stellaria graminea L. FAC Grass-Leaf Starw ort

Stellaria humifusa Rottb. OBL Saltmarsh Starw ort

Stellaria littoralis Torr. OBL Beach Starw ort

Stellaria longifolia Muhl. ex Willd. FACW Long-Leaf Starw ort

Stellaria longipes Goldie FACW Long-Stalk Starw ort

Stellaria media (L.) Vill. FACU Common Chickw eed

Stellaria obtusa Engelm. FACW Rocky Mountain Starw ort

Stellaria umbellata Turcz. ex Kar. & Kir. FACW Umbrella Starw ort

Stemodia durantifolia (L.) Sw . OBL White-Woolly Tw intip

Stenotaphrum secundatum (Walt.) Kuntze FAC St. Augustine Grass

Streptopus amplexifolius (L.) DC. FAC Clasping Tw istedstalk

Streptopus lanceolatus (Ait.) Reveal FAC Lance-Leaf Tw istedstalk

Strophostyles helvola (L.) Ell. FACU Trailing Fuzzy-Bean

Stuckenia filiformis (Pers.) Börner OBL Slender-Leaf False Pondw eed

Stuckenia pectinata (L.) Böerner OBL Sago False Pondw eed

Stuckenia striata (Ruiz & Pavón) Holub OBL Striped False Pondw eed

Stuckenia vaginata (Turcz.) Holub OBL Sheathed False Pondw eed

Styrax platanifolius Engelm. FAC Sycamore-Leaf Snow bell

Suaeda calceoliformis (Hook.) Moq. FACW Paiutew eed

Suaeda californica S. Wats. FACW Broom Seepw eed

Suaeda esteroa Ferren & Whitmore FACW Seablite

Suaeda mexicana (Standl.) Standl. FACW Mexican Seepw eed

Suaeda nigra (Raf.) J.F. Macbr. OBL Shrubby Seepw eed

Suaeda occidentalis (S. Wats.) S. Wats. FACW Western Seepw eed

Suaeda taxifolia (Standl.) Standl. FACW Needle-Leaf Seepw eed

Subularia aquatica L. OBL American Water-Aw lw ort

Suckleya suckleyana (Torr.) Rydb. FACW Poison Suckleya

Suksdorfia violacea Gray FAC Violet Mock Brookfoam

Sullivantia hapemanii (Coult. & Fisher) Coult. FACW Hapeman's Coolw ort

Swertia perennis L. FACW Felw ort

Symphoricarpos albus (L.) Blake FACU Common Snow berry

Symphoricarpos mollis Nutt. FACU Creeping Snow berry

Symphoricarpos occidentalis Hook. FAC Western Snow berry

Symphoricarpos orbiculatus Moench UPL Coral-Berry

Symphyotrichum ascendens (Lindl.) Nesom FAC Western American-Aster

Symphyotrichum bahamense (Britt.) Nesom OBL Island American-Aster

Symphyotrichum boreale (Torr. & Gray) A.& D. Löve OBL Boreal American-Aster

Symphyotrichum bracteolatum (Nutt.) Nesom FAC Bracted American-Aster

Symphyotrichum chilense (Nees) Nesom FAC Pacif ic American-Aster

Symphyotrichum ciliatum (Ledeb.) Nesom FACW Alkali American-Aster

Symphyotrichum defoliatum (Parish) Nesom OBL San Bernardino American-Aster

Symphyotrichum divaricatum (Nutt.) Nesom OBL Law n American-Aster

Symphyotrichum ericoides (L.) Nesom FAC White Heath American-Aster

Symphyotrichum expansum (Poepp. ex Spreng.) Nesom OBL Desert American-Aster

Symphyotrichum falcatum (Lindl.) Nesom FACU Rough White Prairie American-Aster

Symphyotrichum foliaceum (Lindl. ex DC.) Nesom UPL Alpine Leafy-Head American-Aster

Symphyotrichum frondosum (Nutt.) Nesom FACW Leafy American-Aster

Symphyotrichum laeve (L.) A.& D. Löve FACU Smooth Blue American-Aster

Symphyotrichum lanceolatum (Willd.) Nesom OBL White Panicled American-Aster

Symphyotrichum lentum (Greene) Nesom OBL Suisun Marsh American-Aster

Symphyotrichum novae-angliae (L.) Nesom FACW New England American-Aster

Symphyotrichum ontarionis (Wieg.) Nesom FAC Ontario American-Aster

Symphyotrichum pilosum (Willd.) Nesom FACU White Oldfield American-Aster

Symphyotrichum porteri (Gray) Nesom FACU Smooth White American-Aster

Symphyotrichum praealtum (Poir.) Nesom OBL Willow -Leaf American-Aster

Symphyotrichum spathulatum (Lindl.) Nesom FAC Mountain American-Aster

Symphyotrichum squamatum (Spreng.) Nesom OBL

Symphyotrichum subspicatum (Nees) Nesom FACW Leafy-Bract American-Aster

Symphyotrichum subulatum (Michx.) Nesom OBL Seaside American-Aster

Symphytum asperum Lepechin FAC Prickly Comfrey

Synthyris ranunculina Pennell OBL Charleston Mountain Kitten's-Tail


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Tamarix aphylla (L.) Karst. FAC Athel Tamarisk

Tamarix chinensis Lour. FAC Five-Stamen Tamarisk

Tamarix gallica L. FAC French Tamarisk

Tamarix parviflora DC. FAC Small-Flow er Tamarisk

Tanacetum vulgare L. FACU Common Tansy

Taraxacum californicum Munz & Johnston FACW California Dandelion

Taraxacum ceratophorum (Ledeb.) DC. UPL Horned Dandelion

Taraxacum officinale G.H. Weber ex Wiggers FACU Common Dandelion

Taraxia breviflora (Torr. & Gray) Nutt. ex Small FAC Nested Goldeneggs

Taraxia subacaulis Rydb. FACW Spreading Goldeneggs

Taraxia tanacetifolia (Torr. & Gray) Piper FACU Tansy-Leaf Goldeneggs

Tarenaya hassleriana (Chod.) Iltis FACU Pinkqueen

Tauschia tenuissima (Geyer ex Hook.) Mathias & Constance FACW Leiberg's Umbrella-Wort

Taxodium distichum (L.) L.C. Rich. OBL Southern Bald-Cypress

Taxus brevifolia Nutt. FACU Pacif ic Yew

Tecoma stans (L.) Juss. ex Kunth UPL Yellow Trumpetbush

Tellima grandiflora (Pursh) Dougl. ex Lindl. FACU Fragrant Fringecup

Teucrium canadense L. FACW American Germander

Teucrium chamaedrys L. FACU Wall Germander

Teucrium cubense Jacq. FACW Small Coastal Germander

Thalictrum alpinum L. FACW Alpine Meadow -Rue

Thalictrum dasycarpum Fisch. & Avé-Lall. FACW Purple Meadow -Rue

Thalictrum fendleri Engelm. ex Gray FAC Fendler's Meadow -Rue

Thalictrum occidentale Gray FACU Western Meadow -Rue

Thalictrum revolutum DC. FACU Waxy-Leaf Meadow -Rue

Thalictrum sparsiflorum Turcz. ex Fisch. & C.A. Mey. FAC Few -Flow er Meadow -Rue

Thalictrum venulosum Trel. FACU Veiny-Leaf Meadow -Rue

Thelypodium brachycarpum Torr. UPL Short-Pod Thelypody

Thelypodium crispum Greene ex Payson FACU Crisped Thelypody

Thelypodium integrifolium (Nutt.) Endl. FACW Entire-Leaf Thelypody

Thelypodium sagittatum (Nutt. ex Torr. & Gray) Endl. ex Walp. FACW Arrow head Thelypody

Thelypodium stenopetalum S. Wats. FAC Slender-Petal Thelypody

Thelypteris ovata R. St. John FACW Ovate Marsh Fern

Thelypteris puberula (Baker) Morton FACW Show y Maiden Fern

Thermopsis divaricarpa A. Nels. FAC Spread-Fruit Golden-Banner

Thermopsis montana Nutt. FAC Montane Golden-Banner

Thermopsis rhombifolia (Nutt. ex Pursh) Nutt. ex Richards. FACU Prairie Golden-Banner

Thevetia peruviana (Pers.) K. Schum. UPL Luckynut

Thlaspi arvense L. UPL Field Pennycress

Thuja plicata Donn ex D. Don FAC Western Arborvitae

Tiarella trifoliata L. FAC Three-Leaf Foamflow er

Tilia americana L. FACU American Bassw ood

Tiquilia nuttallii (Hook.) A. Richards. UPL Rosette Crinklemat

Tithonia diversifolia (Hemsl.) Gray FACU Tree-Marigold

Tithonia thurberi Gray FACW Arizona Sunflow er-Weed

Tolmiea diplomenziesii Judd, Soltis & P.S. Soltis FAC

Tolmiea menziesii (Pursh) Torr. & Gray FACW Piggyback-Plant

Torreyochloa erecta (A.S. Hitchc.) Church OBL Spiked False Manna Grass

Torreyochloa pallida (Torr.) Church OBL Pale False Manna Grass

Toxicodendron diversilobum (Torr. & Gray) Greene FACU Pacif ic Poison-Oak

Toxicodendron radicans (L.) Kuntze FAC Eastern Poison Ivy

Toxicodendron rydbergii (Small ex Rydb.) Greene FACU Western Poison Ivy

Toxicoscordion fontanum (Eastw .) Zomlefer & Judd OBL

Toxicoscordion micranthum (Eastw .) Heller OBL Small-Flow er Poison Camas

Toxicoscordion venenosum (S. Wats.) Rydb. FACU Meadow Poison Camas

Tradescantia fluminensis Vell. FAC Small-Leaf Wandering-Jew

Tradescantia occidentalis (Britt.) Smyth FACU Prairie Spiderw ort

Tradescantia ohiensis Raf. FACW Bluejacket

Tradescantia wrightii Rose & Bush FACW Wright's Spiderw ort

Transberingia bursifolia (DC.) Al-Shehbaz & O'Kane UPL False Fissurew ort

Trautvetteria caroliniensis (Walt.) Vail FACW Carolina Tassel-Rue

Triadica sebifera (L.) Small FAC Chinese Tallow tree

Triantha occidentalis (S. Wats.) Gates FACW Western False Asphodel

Trianthema portulacastrum L. FAC Desert Horse-Purslane

Trichocoronis wrightii (Torr. & Gray) Gray FACW Limestone Bugheal

Trichophorum caespitosum (L.) Hartman OBL Tufted Leafless-Bulrush

Trichophorum clementis (M.E. Jones) S.G. Sm. FAC Yosemite Leafless-Bulrush

Trichophorum pumilum (Vahl) Schinz & Thellung FACW Rolland's Leafless-Bulrush

Trichostema austromontanum F.H. Lew is OBL San Jacinto Bluecurls

Trichostema lanceolatum Benth. FACU Vinegar-Weed

Trichostema micranthum Gray FAC Small-Flow er Bluecurls

Tridens albescens (Vasey) Woot. & Standl. FACU White Fluff Grass

Tridens flavus (L.) A.S. Hitchc. UPL Tall Redtop

Tridens muticus (Torr.) Nash FAC Aw nless Fluff Grass

Trientalis europaea L. FAC Arctic Starf low er


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Trientalis latifolia Hook. FAC Western Starf low er

Trifolium albopurpureum Torr. & Gray FACU Rancheria Clover

Trifolium amabile Kunth OBL Aztec Clover

Trifolium amoenum Greene FACW Show y Indian Clover

Trifolium barbigerum Torr. FACW Bearded Clover

Trifolium beckwithii Brew er ex S. Wats. FAC Plumas Clover

Trifolium bolanderi Gray OBL Parasol Clover

Trifolium cyathiferum Lindl. FAC Bow l Clover

Trifolium dasyphyllum Torr. & Gray UPL Uinta Clover

Trifolium depauperatum Desv. FAC Balloon Sack Clover

Trifolium douglasii House FACW Douglas' Clover

Trifolium dubium Sibthorp UPL Suckling Clover

Trifolium eriocephalum Nutt. FAC Woolly-Head Clover

Trifolium fragiferum L. FAC Straw berry-Head Clover

Trifolium fucatum Lindl. FACU Sour Clover

Trifolium grayi Loja. FACW Gray's Clover

Trifolium haydenii Porter FACU Hayden's Clover

Trifolium howellii S. Wats. FACW Canyon Clover

Trifolium hybridum L. FAC Alsike Clover

Trifolium hydrophilum Greene FAC Saline Clover

Trifolium kingii S. Wats. FAC King's Clover

Trifolium longipes Nutt. FACW Long-Stalk Clover

Trifolium macrocephalum (Pursh) Poir. FACU Large-Head Clover

Trifolium microcephalum Pursh FAC Small-Head Clover

Trifolium monanthum Gray FAC Mountain Carpet Clover

Trifolium mucronatum Willd. ex Spreng. FACW Cusp Clover

Trifolium neurophyllum Greene FACW White Mountain Clover

Trifolium obtusiflorum Hook. f. FAC Clammy Clover

Trifolium parryi Gray FAC Parry's Clover

Trifolium pinetorum Greene FACW Pinew oods Clover

Trifolium polyodon Greene FACW Pacif ic Grove Clover

Trifolium pratense L. FACU Red Clover

Trifolium productum Greene FAC Shasta Clover

Trifolium repens L. FACU White Clover

Trifolium resupinatum L. UPL Reversed Clover

Trifolium variegatum Nutt. FAC White-Tip Clover

Trifolium willdenowii Spreng. FACW Springbank Clover

Trifolium wormskioldii Lehm. FACW Cow Clover

Triglochin concinna Burtt-Davy OBL Slender Arrow -Grass

Triglochin maritima L. OBL Seaside Arrow -Grass

Triglochin palustris L. OBL Marsh Arrow -Grass

Triglochin scilloides (Poir.) Mering & Kadereit OBL Flow ering-Quillw ort

Triglochin striata Ruiz & Pavón OBL Three-Rib Arrow -Grass

Trillium albidum J.D. Freeman FACU Giant White Trillium

Trillium ovatum Pursh FACU Western Trillium

Triodanis perfoliata (L.) Nieuw l. FACU Clasping-Leaf Venus'-Looking-Glass

Triphasia trifolia (Burm. f.) P. Wilson FACU Limeberry

Tripleurospermum maritimum (L.) W.D.J. Koch FACU False Mayw eed

Tripsacum dactyloides (L.) L. FAC Eastern Mock Grama

Trisetum cernuum Trin. FACU Tall False Oat

Trisetum orthochaetum A.S. Hitchc. FACW Bitterroot False Oat

Trisetum spicatum (L.) Richter FACU Narrow False Oat

Triteleia hyacinthina (Lindl.) Greene FAC Fool's-Onion

Triteleia ixioides (Ait. f .) Greene FAC Prettyface

Triteleia peduncularis Lindl. FACW Long-Ray Triplet-Lily

Trollius laxus Salisb. OBL American Globeflow er

Tropaeolum majus L. UPL Garden-Nasturtium

Tsuga heterophylla (Raf.) Sarg. FACU Western Hemlock

Tsuga mertensiana (Bong.) Carr. FACU Mountain Hemlock

Tuctoria greenei (Vasey) J. Reeder OBL Aw nless Spiral Grass

Tuctoria mucronata (Crampton) J. Reeder OBL Prickly Spiral Grass

Tussilago farfara L. FACU Colt's-Foot

Typha X glauca Godr. (pro sp.) OBL

Typha X provincialis A. Camus OBL

Typha angustifolia L. OBL Narrow -Leaf Cat-Tail

Typha domingensis Pers. OBL Southern Cat-Tail

Typha latifolia L. OBL Broad-Leaf Cat-Tail

Ulex europaeus L. UPL Common Gorse

Ulmus americana L. FAC American Elm

Ulmus glabra Huds. FACU Wych Elm

Ulmus parvifolia Jacq. UPL Chinese Elm

Ulmus pumila L. UPL Siberian Elm

Ulmus rubra Muhl. FAC Slippery Elm

Umbellularia californica (Hook. & Arn.) Nutt. FAC California-Laurel

Urochloa fusca (Sw .) B.F. Hansen & Wunderlin UPL Brow n-Top Liverseed Grass


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Urochloa panicoides Beauv. FACU Panic Liverseed Grass

Urochloa platyphylla (Munro ex Wright) R. Webster FAC Broad-Leaf Liverseed Grass

Urtica dioica L. FAC Stinging Nettle

Utricularia cornuta Michx. OBL Horned Bladderw ort

Utricularia gibba L. OBL Humped Bladderw ort

Utricularia inflata Walt. OBL Sw ollen Bladderw ort

Utricularia intermedia Hayne OBL Flat-Leaf Bladderw ort

Utricularia macrorhiza Le Conte OBL Greater Bladderw ort

Utricularia minor L. OBL Lesser Bladderw ort

Utricularia ochroleuca R.W. Hartman OBL Dw arf Bladderw ort

Utricularia striata Le Conte ex Torr. OBL Striped Bladderw ort

Utricularia subulata L. OBL Zigzag Bladderw ort

Vaccaria hispanica (P. Mill.) Rauschert FACU Cow cockle

Vaccinium alaskaense T.J. How ell FAC Alaska Blueberry

Vaccinium caespitosum Michx. FAC Dw arf Blueberry

Vaccinium macrocarpon Ait. OBL Large Cranberry

Vaccinium membranaceum Dougl. ex Torr. FACU Square-Tw ig Blueberry

Vaccinium myrtilloides Michx. FACU Velvet-Leaf Blueberry

Vaccinium myrtillus L. FACU Whortle-Berry

Vaccinium ovalifolium Sm. UPL Oval-Leaf Blueberry

Vaccinium ovatum Pursh UPL Evergreen Blueberry

Vaccinium oxycoccos L. OBL Small Cranberry

Vaccinium parvifolium Sm. FAC Red Blueberry

Vaccinium scoparium Leib. ex Coville FACU Grouseberry

Vaccinium uliginosum L. FACW Alpine Blueberry

Vachellia farnesiana (L.) Wight & Arn. FACU Mealy False Acacia

Vahlodea atropurpurea (Wahlenb.) Fries ex Hartman FACW Arctic-Hair Grass

Valeriana acutiloba Rydb. FACU Cordilleran Valerian

Valeriana dioica L. FACW Marsh Valerian

Valeriana edulis Nutt. ex Torr. & Gray FAC Tobacco-Root

Valeriana occidentalis Heller FAC Small-Flow er Valerian

Valeriana scouleri Rydb. FAC Scouler's Valerian

Valeriana sitchensis Bong. FAC Sitka Valerian

Valeriana texana Steyermark OBL Guadalupe Valerian

Valerianella amarella (Lindheimer ex Engelm.) Krok FACU Hairy Cornsalad

Vallisneria americana Michx. OBL American Eel-Grass

Veratrum californicum Dur. FACW California False Hellebore

Veratrum fimbriatum Gray FACW Fringed False Hellebore

Veratrum viride Ait. FACW American False Hellebore

Verbascum blattaria L. UPL White Moth Mullein

Verbascum thapsus L. FACU Great Mullein

Verbena bonariensis L. FACW Purple-Top Vervain

Verbena bracteata Cav. ex Lag. & Rodr. FAC Carpet Vervain

Verbena californica Moldenke FACW Red Hills Vervain

Verbena hastata L. FAC Simpler's-Joy

Verbena incompta P.W. Michael FACU Brazilian Vervain

Verbena lasiostachys Link FAC Western Vervain

Verbena macdougalii Heller FACU New Mexico Vervain

Verbena officinalis L. FACU Herb-of-the-Cross

Verbena scabra Vahl OBL Sandpaper Vervain

Verbena urticifolia L. FAC White Vervain

Verbesina encelioides (Cav.) Benth. & Hook. f. ex Gray FACU Golden Crow nbeard

Vernonia marginata (Torr.) Raf. FACU Plains Ironw eed

Vernonia missurica Raf. FACW Missouri Ironw eed

Vernonia noveboracensis (L.) Michx. FAC New York Ironw eed

Veronica americana Schw ein. ex Benth. OBL American-Brooklime

Veronica anagallis-aquatica L. OBL Blue Water Speedw ell

Veronica arvensis L. FACU Corn Speedw ell

Veronica beccabunga L. OBL European Speedw ell

Veronica chamaedrys L. FACU Germander Speedw ell

Veronica cusickii Gray FAC Cusick's Speedw ell

Veronica officinalis L. UPL Common Gypsyw eed

Veronica peregrina L. FAC Neckw eed

Veronica scutellata L. OBL Grass-Leaf Speedw ell

Veronica serpyllifolia L. FAC Thyme-Leaf Speedw ell

Veronica wormskjoldii Roemer & J.A. Schultes FACW American Alpine Speedw ell

Viburnum edule (Michx.) Raf. FACW Squashberry

Viburnum lentago L. FAC Nanny-Berry

Viburnum opulus L. FACW Highbush-Cranberry

Viburnum rufidulum Raf. FACU Rusty Blackhaw

Vicia americana Muhl. ex Willd. FAC American Purple Vetch

Vicia ludoviciana Nutt. UPL Louisiana Vetch

Vicia nigricans Hook. & Arn. FACU Black Vetch

Vicia sativa L. FACU Garden Vetch

Viola X viarum Pollard FACU


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Viola adunca Sm. FAC Hook-Spur Violet

Viola bicolor Pursh FAC Field Pansy

Viola canadensis L. FACU Canadian White Violet

Viola glabella Nutt. FAC Pioneer Violet

Viola hallii Gray FAC Oregon Violet

Viola labradorica Schrank FAC Alpine Violet

Viola langsdorfii Fisch. ex Gingins FACW Aleutian Violet

Viola macloskeyi Lloyd OBL Smooth White Violet

Viola missouriensis Greene FACW Missouri Violet

Viola nephrophylla Greene FACW Northern Bog Violet

Viola palustris L. FACW Alpine-Marsh Violet

Viola pedatifida G. Don FACU Crow -Foot Violet

Viola renifolia Gray FACW Kidney-Leaf White Violet

Viola septentrionalis Greene FACU Northern Woodland Violet

Viola sororia Willd. FAC Hooded Blue Violet

Vitex trifolia L. UPL Three-Leaf Chastetree

Vitis aestivalis Michx. FACU Summer Grape

Vitis arizonica Engelm. FACU Canyon Grape

Vitis californica Benth. FACU California Grape

Vitis girdiana Munson FAC Valley Grape

Vitis labrusca L. FACU Fox Grape

Vitis riparia Michx. FAC River-Bank Grape

Vitis rupestris Scheele FACU Rock Grape

Vulpia bromoides (L.) S.F. Gray FACU Brome Six-Weeks Grass

Vulpia myuros (L.) K.C. Gmel. FACU Rat-Tail Six-Weeks Grass

Vulpia octoflora (Walt.) Rydb. UPL Eight-Flow er Six-Weeks Grass

Waltheria indica L. UPL Basora-Prieta

Washingtonia filifera (L. Linden) H. Wendl. FAC California Fan Palm

Washingtonia robusta H. Wendl. FACW Washington Fan Palm

Wislizenia refracta Engelm. FACU Spectacle-Fruit

Wolffia arrhiza (L.) Horkel ex C.F.H. Wimmer OBL Spotless Watermeal

Wolffia borealis (Engelm. ex Hegelm.) Landolt ex Landolt & Wildi OBL Northern Watermeal

Wolffia brasiliensis Weddell OBL Brazilian Watermeal

Wolffia columbiana Karst. OBL Columbian Watermeal

Wolffia globosa (Roxb.) den Hartog & Plas OBL Asian Watermeal

Wolffiella lingulata (Hegelm.) Hegelm. OBL Tongue-Shape Bogmat

Wolffiella oblonga (Phil.) Hegelm. OBL Saber Bogmat

Woodwardia fimbriata Sm. FACW Giant Chain Fern

Woodwardia radicans (L.) J. Sm. OBL Rooting Chain Fern

Wyethia amplexicaulis (Nutt.) Nutt. FAC Northern Mule's-Ears

Wyethia angustifolia (DC.) Nutt. FACU California-Compassplant

Wyethia helianthoides Nutt. FACW White-Ray Mule's-Ears

X Elyhordeum macounii (Vasey) Barkw orth & D.R. Dew ey FACU

X Leydeum piperi (Bow den) Barkw orth FAC

Xanthisma spinulosum (Pursh) D. Morgan & R.L. Hartman UPL Lacy Sleepy Daisy

Xanthium spinosum L. FACU Spiny Cockleburr

Xanthium strumarium L. FAC Rough Cockleburr

Xanthocephalum

gymnospermoides(Gray) Benth. & Hook. f. FAC San Pedro Matchw eed

Xerophyllum tenax (Pursh) Nutt. FACU Western Turkeybeard

Yabea microcarpa (Hook. & Arn.) K.-Pol. FACU False Hedge-Parsley

Youngia japonica (L.) DC. FACU Oriental False Haw k's-Beard

Yucca gloriosa L. UPL Moundlily Yucca

Zannichellia palustris L. OBL Horned-Pondw eed

Zantedeschia aethiopica (L.) Spreng. OBL Calla-Lily

Zeltnera X nevadensis (Broome) G.Mans. FACW

Zeltnera beyrichii (Torr. & Gray ex Torr.) G.Mans. FACU Quininew eed

Zeltnera calycosa (Buckl.) G.Mans. FACW Buckley's Mountain-Pink

Zeltnera exaltata (Griseb.) G.Mans. FACW Desert Mountain-Pink

Zeltnera glandulifera (Correll) G.Mans. FACU Sticky Mountain-Pink

Zeltnera muehlenbergii (Griseb.) G.Mans. FAC Monterey Mountain-Pink

Zeltnera namophila (Reveal, Broome & Beatley) G.Mans. FACW Spring-Loving Mountain-Pink

Zeltnera nudicaulis (Engelm.) G.Mans. FACW Santa Catalina Mountain-Pink

Zeltnera trichantha (Griseb.) G.Mans. FAC Alkali Mountain-Pink

Zizania palustris L. OBL Northern Wild Rice

Zizia aptera (Gray) Fern. FAC Heart-Leaf Alexanders

Ziziphus mauritiana Lam. UPL Indian Jujube

Zostera marina L. OBL Seaw rack

Zoysia matrella (L.) Merr. FACU Manila Temple Grass

Zoysia pacifica (Gouds.) M. Hotta & S. Kuroki UPL Pacif ic Temple Grass

Documents

Arid West 2016 Regional Wetland Plant List · Arid West 2016 Regional Wetland Plant List Lichvar, R.W., D.L. Banks, W.N. Kirchner, and N.C. Melvin. 2016. The National Wetland Plant