General: Annual tufted grass from fibrous roots; stems 25-80 cm tall.
Leaves: Sheath margins open 1/7-1/2 their length; blades 1-7 mm wide, flat, gradually tapered to the tips; ligules 1.5-5 (10) mm long, the backs smooth.
Flowers: Inflorescence an erect panicle, 10-25 cm long, open, the branches (1) 3 to 5 (7) per node, ascending in flower, spreading to reflexed in fruit, generally moderately to distinctly rough; spikelets laterally compressed, 4-6 mm long, 3- to 5-flowered; lower glumes 1- to 3-nerved; rachilla internodes about 1 mm long, hairless or hairy; lemmas 2.5-3.5 mm long, evenly crisply short-hairy below, lateral nerves obscure; calluses cobwebby; palea keels rough, somewhat short-hairy; anthers 0.2-1 mm long.
If more than one illustration is
available for a species (e.g., separate illustrations were provided for two
subspecies) then links to the separate images will be provided below.
Note that individual subspecies or varietal illustrations are not always available.
