Flora of North America species comparison

16-75 cm, erect;

nodes glabrous.

glabrous, margins ciliate;

ligules 1-1.3 mm;

blades 5-40 cm long, 2-4.5 mm wide, flat to folded, glabrous, pubescent, or scabrous, margins ciliate or glabrous basally.

terminal, 4-11.5 cm long, 50-75 mm wide, fully exerted from the sheaths, erect, white;

rachises terete, pubescent (basally).

9-12 mm, glabrous;

pedicels 0.1-0.4 mm;

lower glumes 0.3-1.3 mm, veinless;

upper glumes 2.5-5.2 mm, 1(3)-veined;

lower florets staminate or sterile;

lower lemmas 7.5-10.5 mm, 7-9(10)-veined;

lower paleas absent or 5.5-8.5 mm;

anthers absent or 3.8-4.5 mm;

upper lemmas 9-11 mm, 7-veined, apices scabridulous;

anthers 3.5-5 mm.

concealed by the lemma and palea at maturity.

7-11 per cm;

fascicle axes 1.5-2.5 mm, with 1-4 spikelets;

outer bristles (0)1-8, 1-13.5 mm;

inner bristles 23-41, 13-50.5 mm, densely plumose;

primary bristles 40-50 mm, ciliate, usually not noticeably longer than the other bristles.

= 45.