Flora of North America species comparison

10-38 cm, erect or spreading;

internodes mostly glabrous, smooth or scabridulous, scabrous or strigulose below the nodes.

3-27 cm, erect, glabrous.

often longer than the internodes, scabridulous, margins hyaline;

ligules 1-3 mm, hyaline, obtuse, irregularly toothed to lacerate, with lateral lobes;

blades 1-10 cm long, 0.4-2 mm wide, flat, scabrous abaxially, strigulose adaxially, margins and midveins thickened basally, whitish.

usually longer than the internodes, smooth or scabridulous;

ligules 1.5-3 mm, membra nous, acute;

blades 1-5 cm long, 0.6-1.5 mm wide, flat to involute, smooth or scabridulous abaxially, sometimes shortly pubescent adaxially.

10-24 cm long, 3.5-11 cm wide, diffuse;

primary branches 2.2-6.2 cm long, about 0.1 mm thick, diverging 80-100° from the rachises, straight;

pedicels 6-10 mm long, about 0.02 mm thick, delicate;

disarticulation above the glumes.

2-8 cm long, 0.3-3.4 cm wide, contracted or open;

primary branches 1-5 cm, diverging up to 80° from the rachises;

pedicels 0.4-5 mm, smooth or scabrous.

1-1.2 mm, appressed to slightly divergent.

1.4-4.2 mm.

equal to subequal, 0.5-1 mm, glabrous throughout or obscurely puberulent, hairs about 0.06 mm, 1-veined, obtuse or subacute;

lemmas 1-1.2 mm, oblong-elliptic, purplish to light brownish, not mottled, glabrous or densely appressed-puberulent on the margins and midveins, apices obtuse, unawned;

paleas 0.9-1.2 mm, oblong-elliptic;

anthers 0.3-0.5 mm, purplish.

smooth or scabridulous;

lower glumes 0.8-2.8 mm, narrow to broadly lanceolate, 1-veined, acute, often awn-tipped;

upper glumes 0.9-3 mm, wider than the lower glumes, lanceolate, (1)2-3-veined, truncate to acute, 2- or 3-toothed;

lemmas 1.4-4.2 mm, widest near the base, purplish mottled with dark green, hairy on the calluses and lower M of the lemma bodies, hairs to 0.5 mm, apices acuminate, usually bifid and awned from between the teeth, teeth to 0.5 mm, awns 3-10 mm, flexuous, purplish;

paleas 1.3-3.8 mm, narrowly lanceolate, acuminate to subacute;

anthers 0.5-1 mm, purplish to yellowish.

0.7-0.9 mm, elliptic, reddish-brown.

1-1.6 mm, fusiform, brownish.

= 20.

= 30.