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