Flora of North America species comparison

1-2.5 m;

nodes hairy, occasionally glabrate, hairs 7-12 mm.

mostly glabrous, ciliate distally;

auricles absent;

ligules 1-3 mm;

blades 30-60 cm long, 14-28 mm wide, glabrous at maturity.

40-60 cm, pilose;

panicles 3-10 cm wide, oblong to lanceolate;

rachises 15-34 cm, densely pilose;

lowest nodes glabrous or sparsely pilose;

primary branches 3-12 cm, appressed;

rame internodes 3-5 mm, pilose.

2.5-4 mm, pilose.

spikelets 6-7 mm long, 1.1-1.4 mm wide, straw-colored;

callus hairs 9-14 mm, exceeding the spikelets, silvery or purple-tinged;

lower glumes 5-veined, smooth;

upper glumes 3-5-veined;

lower lemmas 4.8-5.6 mm, without veins or 1-veined;

upper lemmas 4-4.6 mm, 1-veined, bifid, teeth 1.8-2 mm, ciliate;

awns 14-20 mm, flattened and spirally coiled at the base;

lodicule veins not extending into hairlike projections;

anthers 2.

spikelets similar to the sessile spikelets, except frequently pilose.

= 30.