Flora of North America species comparison

50-200 cm.

30-100 cm;

nodes pubescent, hairs appressed.

glabrous, fringed with white hairs;

ligules about 2 mm;

blades 15-30 cm long, 10-20 mm wide, usually with soft hairs on the adaxial surface.

with ciliate margins;

ligules ciliate;

blades to 12(25) cm long, to 10(20) mm wide, flat, hispid on both surfaces.

6-20 cm, densely spicate, arching and drooping from near the base;

rachises densely villous;

bristles (1)3(6), about 10 mm.

3-18 cm, loosely spicate, interrupted, often purple;

rachises hispid;

bristles 1-3, 5-15 mm, flexible, antrorsely scabrous.

2.5-3 mm.

1.5-2.2 mm.

about 1 mm, acute, 3-veined;

upper glumes about 2.2 mm, obtuse, 5-veined;

lower lemmas about 2.8 mm, obtuse;

lower paleas about 2/3 as long as the lower lemmas;

upper lemmas pale, finely and distinctly transversely rugose;

upper paleas similar to the upper lemmas.

about 1/3 as long as the spikelets, distinctly 3-veined, lateral veins coalescing with the central veins below the apices;

upper glumes nearly equaling the upper lemmas, obtuse, 5-veined;

lower lemmas equaling the upper lemmas;

lower paleas about 1/3 as long as the lower lemmas, narrow;

upper lemmas finely and transversely rugose;

upper paleas similar to the upper lemmas.

= 36.

= unknown.