Flora of North America species comparison

10-42 cm, erect or decumbent, much branched below;

internodes mostly scabrous, scabrous or hispidulous below the nodes.

7-16 cm.

usually shorter than the internodes, flattened below, glabrous, scabridulous or smooth, striate;

ligules 1.5-3 mm, hyaline, acute, lacerate, with lateral lobes;

blades 1-5(7) cm long, 0.8-1.6(2) mm wide, flat or involute, scabrous abaxially, pubescent adaxially.

longer than the internodes, scabridulous or smooth, margins membranous;

ligules 1.3-2 mm, membranous, rounded;

blades 1-5 cm long, 0.7-1.4 mm wide, flat or involute, scabridulous or smooth abaxially, shortly pubescent adaxially.

4-23 cm long, 0.5-2 cm wide, usually partially included in the subtending sheaths at maturity;

primary branches 20-45 mm, ascending, closely appressed;

pedicels 1-5 mm, appressed, scabrous;

disarticulation above the glumes.

1.8-4.5 cm long, 1.5-3 cm wide, long-exserted;

primary branches 1.5-2.8 cm, ascending;

pedicels 0.4-2 mm, often curved, scabrous.

4-7.5 mm, borne singly.

1.7-2.2 mm.

1-2 mm, 1-veined, veins conspicuous, scabrous, and greenish basally, apices obtuse to subacute, often erose;

lemmas 4-6.2(7.5) mm, narrowly lanceolate, terete, mostly smooth, scabrous distally, hairy on the calluses and lower 1/4 of the margins, hairs 0.2-0.3 mm, whitish, lemma bodies not appearing 5-veined, apices acuminate, awned, awns 10-30 mm, straight, scabrous;

paleas 3.8-5.7(7) mm, narrowly lanceolate;

anthers 0.3-1.1 mm, purplish.

whitish, mostly smooth, scabrous on the veins;

lower glumes 1.2-1.6 mm, 1-veined, acute;

upper glumes 1.6-1.8 mm, wider than the lower glumes, 2- or 3-veined, truncate, 2- or 3-toothed;

lemmas 1.7-2.2 mm, lanceolate, widest near the middle, whitish with dark green patches, densely hairy on the calluses and lower portion of the lemma bodies, hairs to 0.5 mm, apices glabrous, acuminate, minutely bifid, awned, awns 8-18 mm, sinuous to crisped or curled, olive-green;

paleas 1.1-1.7 mm, lanceolate, intercostal region loosely pilose on the proximal 2/3, apices acuminate;

anthers 0.4-0.7 mm, purplish-red.

1.6-3 mm, narrowly fusiform, brownish to pinkish.

0.5-1.1 mm, ellipsoid, brownish.

spikelets usually present in the axils of the lower leaves.

= unknown.

= 20.