Flora of North America species comparison

50-200 cm.

50-200 cm;

nodes pubescent.

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 distally;

ligules about 1 mm, ciliate;

blades 10-25 mm wide, plicate, both surfaces scabrous, adaxial surfaces with parallel rows of papillose-based hairs.

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

rachises densely villous;

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

to 20 cm, open;

branches 2-4 cm, axes villous;

bristles solitary, usually only present below the terminal spikelet on each branch, occasionally below non-terminal spikelets, 5-8 mm, flexible.

2.5-3 mm.

2.5-3 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 mm, orbicular, 3-5-veined;

upper glumes about 2 mm, ovate, 7-veined;

lower lemmas about 2.5 mm, slightly coriaceous, acute;

lower paleas about equaling the lower lemmas in length and width;

upper lemmas about 2.3 mm, strongly transversely rugose;

upper paleas enclosed.

= 36.

= 54, 56.