Flora of North America species comparison

to 100 cm, erect or decumbent at the base.

20-80 (90) cm, more or less decumbent.

smooth, glabrous;

ligules 4-8 mm, scabridulous, lacerate;

blades 10-30 cm long, 4-15 mm wide.

smooth;

ligules 2-6 mm, scabridulous-pubescent;

blades 5-9 cm long, 3-6 mm wide.

10-30 cm, erect or nodding, interrupted, dense;

pedicels not developed;

stipes 1.5-2.5 mm.

3-15 cm long, 0.5-3 cm wide, usually interrupted or lobed;

pedicels not developed;

stipes 0.2-0.7 mm.

3-5 mm, hispidulous, tapering from about midlength to the acute apices, apices unlobed, awned, awns 1-3 mm;

lemmas about 1.5 mm, awned, awns 1-2 mm, arising from above midlength;

paleas 1/2 - 2/3 as long as the lemmas;

anthers 0.5-0.7 mm.

2-3 mm, subequal, scabrous, larger prickles extending up the keel beyond midlength, not tapering to the apices, apices acute to truncate, unlobed or the lobes to 0.1 mm, awned, awns 1.5-3.2 mm, those of the lower and upper glumes subequal;

lemmas 0.8-1.5 mm, glabrous, smooth and shiny, apices obtuse, not emarginate, awned, awns 1-3.2 mm;

paleas about 3/4 as long as the lemmas;

anthers 0.5-0.7 mm.

= 28, 56.

= 28, 42.