Flora of North America species comparison

(5)20-40 (50) cm, geniculate.

to 100 cm, erect or decumbent at the base.

glabrous, smooth, uppermost sheaths sometimes inflated;

ligules to 7 mm;

blades (1)3-9 (14) cm long, 0.5-5 mm wide.

smooth, glabrous;

ligules 4-8 mm, scabridulous, lacerate;

blades 10-30 cm long, 4-15 mm wide.

(1)2-8(15) cm, narrowly ellipsoid, dense, sometimes lobed, often purplish;

pedicels to about 0.5 mm, capillary;

stipes 0.1-1.2 mm.

10-30 cm, erect or nodding, interrupted, dense;

pedicels not developed;

stipes 1.5-2.5 mm.

1.8-3.2 mm, hispidulous basally, hairs sometimes strongly inflated and obtuse, apices lobed, lobes 0.3-1.2 mm, more than 1/6 the length of the glume body, awned from the sinus, awns (4)7-12 mm;

lemmas 0.5-1.5 mm, unawned or awned, awns shorter than 1 mm;

paleas subequal to the lemmas;

anthers 0.4-0.5 mm.

3-5 mm, hispidulous, tapering from about midlength to the acute apices, apices unlobed, awned, awns 1-3 mm;

lemmas about 1.5 mm, awned, awns 1-2 mm, arising from above midlength;

paleas 1/2 - 2/3 as long as the lemmas;

anthers 0.5-0.7 mm.

= 14.

= 28, 56.