Flora of North America species comparison

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

internodes mostly scabrous, scabrous or hispidulous below the nodes.

(3)5-25 cm, erect, branching, but not rooting, basally;

internodes glabrous, mostly smooth, sometimes scabridulous below the nodes.

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.

usually shorter than the internodes, glabrous, smooth or scabridulous;

ligules 0.2-0.5 mm, hyaline, truncate, ciliate, without lateral lobes;

blades 0.5-3 cm long, 0.8-1.2 mm wide, involute or flat, glabrous abaxially, puberulent 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)2-9 cm long, 0.6-2.7 cm wide, open, ovoid or deltoid, spikelets sparse;

primary branches (0.5)1-3.2 cm long, about 0.1 mm thick, ascending, spreading 20-100° from the rachises;

pedicels 1-3 mm long, 0.5-1.5 mm thick, stiff.

4-7.5 mm, borne singly.

0.8-1.3 mm, appressed or divaricate.

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.

equal, 0.4-0.7 mm, glabrous, 1-veined, obtuse or subacute, unawned;

lemmas 0.8-1.3 mm, oval, plump, mottled with greenish-black and greenish-white or ochroleucous patches, glabrous or shortly appressed-pubescent on the margins and midveins, apices acute, unawned;

paleas 0.7-1.3 mm, oval;

anthers 0.2-0.3 mm, purplish.

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

0.5-1 mm, elliptic, brownish.

spikelets usually present in the axils of the lower leaves.

= unknown.

= 20.