Flora of North America species comparison

30-100 cm;

nodes pubescent, hairs appressed.

50-200 cm;

nodes pubescent.

with ciliate margins;

ligules ciliate;

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

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.

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

rachises hispid;

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

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.

1.5-2.2 mm.

2.5-3 mm.

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.

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.

= unknown.

= 54, 56.