Flora of North America species comparison

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

20-100 cm.

smooth;

ligules 2-6 mm, scabridulous-pubescent;

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

smooth to scabridulous;

ligules 1-3(4) mm, rounded to broadly acute, erose;

blades 13-17 cm long, 5-7 mm wide, scabrous.

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

pedicels not developed;

stipes 0.2-0.7 mm.

8-15 cm, lobed or interrupted, usually purplish;

pedicels absent or vestigial;

stipes 0.3-0.5 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.

1.5-3 mm, smooth to echinate, margins ciliate, apices acute to truncate, unlobed or lobed, lobes to 0.1 mm, awned, awns (3)4-6 mm, flexuous;

lemmas 1-1.3 mm, awned, awns 2-3.5 mm, flexuous;

paleas from shorter than to subequal to the lemmas;

anthers 0.3-0.5 mm.

= 28, 42.

= unknown.