GRASS GENERA III Grasses with Panicoid Spikelets (Beadlike in Appearance)

GRASS GENERA IIIGrasses with Panicoid Spikelets (Beadlike in Appearance)

“PANICOID SPIKELET”

A) Spikelets with Spines or Bristles

Echinochloa (Barnyard Grass)

Echinochloa

Echinochloa

Setaria (Bristlegrass; Foxtail grass)

Setaria

* Setaria pumila(Yellow Bristlegrass)

* Setaria viridis(Green Bristlegrass)

Introduced Setaria

Setaria grisebachii(Grisebach’s Bristlegrass)

Setaria leucopila(Streambed Bristlegrass)

Native Setaria

Setaria or Polypogon?

Setaria versus Polypogon

Cenchrus (Sandbur)

Cenchrus (Sand-Bur)

B) Panicoid Grasses Lacking Spines or BristlesFirst Glume Minute (< .5 mm long)

Digitaria (Crabgrass)

Digitaria

Digitaria sanguinalis (Hairy Crabgrass)Digitaria ischaemum (Smooth Crabgrass)

Digitaria californica (Arizona Cottontop)

Digitaria Look-Alikes

Digitaria vs. Cynodon vs. Chloris

Eriochloa (Cupgrass)

Paspalum (Knotgrass)

Paspalum (Knotgrass)

Paspalum distichum (Knotgrass)

• Wetlands, Riparian Edge Habitat

C) Panicoid Grasses Lacking Spines or BristlesFirst Glume Conspicuous (> .5 mm long)

Panicum – Perennial Species

Panicum obtusum (vine mesquite)

Panicum – Perennial Species

Panicum bulbosum (Bulb Panicum)

Panicum capillare (Fall Witch Grass)

Panicum – Annual Species

PANICOID GRASSES

A) Spikelets with Spines or Bristles: Echinochloa, Setaria, Cenchrus

B) Spikelets Lacking Spines or Bristles; First Glume Minute: Digitaria, Eriochloa, Paspalum

C) Spikelets Lacking Spines or Bristles; First Glume Conspicuous: Panicum