Flora of North America species comparison

(5)10-40 cm.

2-8 cm long, 0.9-3.2 cm wide;

branches 1-2 cm, with a few scattered, whitish hairs.

1-2 mm.

3-10 mm;

blades 2.5-11(20) cm long, 2.5-7.5 mm wide.

spikelets 2.6-4.2 mm;

lower rachilla internodes about 1 mm, glabrous;

upper rachilla internodes 1.4-2.2(2.6) mm, puberulent or glabrous, sometimes scabrous;

glumes 2.6-4.2 mm, bisexual florets 2.4-3 mm, minutely bifid, teeth shorter than 0.2 mm, apices awned, awns 5-7.2 mm;

anthers 0.4-0.7 mm;

rudimentary florets 0.4-0.6 mm, awns 4-5(7) mm.

spikelets 6-9 mm;

lemmas 1-2 mm.

= 14.