Flora of North America species comparison

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

15-80 cm, ascending or geniculate, not branched.

smooth;

ligules 2-6 mm, scabridulous-pubescent;

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

smooth or scabrous;

ligules 2-5 mm, membranous or hyaline, sometimes retrorsely scabridulous;

blades 3-15 cm long, 1.5-8 mm wide, flat to convolute, scabrous, apices acute to sharp.

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

pedicels not developed;

stipes 0.2-0.7 mm.

3-25 cm long, 1-8 cm wide, dense, glomerate, interrupted near the base;

pedicels not developed;

stipes 0.6-1.5 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.

1.8-4 mm, scabridulous on the sides, keels echinate, not tapering to the apices, apices acute, unlobed, awned, awns 0.2-2.5 mm;

lower glumes 1.8-4 mm;

upper glumes 1.6-3.5 mm, usually shorter than the lower glumes;

lemmas 1-2 mm, hyaline, unawned or awned, awns subterminal, to 1 mm;

paleas 0.5-0.8 mm, about 1/2 as long as the lemmas;

anthers 0.2-0.8 mm.

1-1.5 mm long, 0.3-0.4 mm wide.

= 28, 42.

= unknown.