Flora of North America species comparison

2-8 m, erect, pubescent beneath the panicle;

nodes glabrous or pubescent.

30-200 cm, erect, branching;

nodes glabrous.

glabrous or pubescent;

ligules 1.5-5 mm;

blades 23-125 cm long, (4)12-40 mm wide, flat, glabrous or pubescent.

glabrous, margins ciliate;

ligules 1.5-2.7 mm;

blades 15-55 cm long, 4-18 mm wide, flat, glabrous or pubescent.

terminal, 8-30.5 cm long, (10)30-50 mm wide, fully exerted from the leaf sheaths, erect, golden-yellow to dark purple;

rachises terete, pubescent.

terminal, 10-25 cm long, 15-30 mm wide, fully exerted from the sheaths, erect to drooping, white, yellow, light brown, or pink to deep purple;

rachises terete, scabrous.

5.9-7 mm, pedicellate;

pedicels of terminal spikelets 0.2-0.4 mm, of other spikelets 1.8-3 mm;

lower glumes absent or to 0.8 mm;

upper glumes 0.8-3 mm, 0-1-veined;

lower florets sterile or staminate;

lower lemmas 4-5.3 mm, 3-5(6)-veined;

lower paleas 4-4.7 mm;

anthers absent or 2.2-3.1 mm, penicillate;

upper lemmas 4.5-7 mm, subcoriaceous, shiny, 5-7-veined, acuminate;

anthers 2.7-3.6 mm, penicillate.

3-4.5 mm, sessile;

lower glumes absent or to 2 mm, veinless;

upper glumes 3-4.5 mm, glabrous, 5-7-veined, 3-lobed;

lower florets sterile or staminate;

lower lemmas 3-3.9 mm, 5-7-veined, apices lobed;

lower paleas 2.9-3.7 mm;

anthers absent or 1.7-2 mm;

upper florets disarticulating at maturity;

upper lemmas 1.7-3 mm, coriaceous, shiny, 5-veined, apices ciliate;

anthers 1.3-2.1 mm.

1.8-2.2 mm.

about 1.7 mm, concealed by the lemma and palea at maturity.

30-40 per cm, disarticulating at maturity;

fascicle axes 0.5-1.5 mm, with 1-5 spikelets;

outer bristles 20-63, 1.5-10.3 mm, yellow or purple, scabrous;

inner bristles 4-6, 9.1-11.5 mm, yellow or purple, sparsely long-ciliate;

primary bristles 13-40 mm, noticeably longer than the other bristles, yellow or purple, scabrous.

33-45 per cm, disarticulating at maturity;

fascicles axes 0.2-0.5 mm, with 1 spikelet;

outer bristles 13-30, 1.3-5 mm, scabrous;

inner bristles 6-14, 4.3-11.5 mm, long ciliate;

primary bristles 14-25 mm, long-ciliate, noticeably longer than the other bristles.

= 28.

= 18, 36, 45, 48, 52, 53, 54, 56, 78.