Flora of North America species comparison

40-120 cm tall, less than 2 mm thick, erect;

internodes mostly pubescent, retrorsely hirsute to strigose below the nodes.

mostly glabrous, usually pubescent near the base, scabridulous distally;

ligules 0.4-1.2 mm, membranous, truncate, ciliolate;

blades 6-20 cm long, 4-10(15) mm wide, flat, glabrous and smooth abaxially, occasionally scabridulous adaxially.

usually terminal, 10-33 cm long, 0.2-0.8 cm wide, exserted;

branches 1-10 cm, ascending to appressed;

pedicels 1-6 mm, strigose.

2.6-4.5 mm, overlapping the next spikelet on the branch by 1/4 of its length.

subequal, 1.3-3 mm, shorter than the lemmas, 1-veined (lower glumes rarely 2- or 3-veined), tapering from near the base, bases overlapping, apices scabridulous, acute, unawned or awned, awns to 1 mm;

lemmas 2.6-4.5 mm, lanceolate to narrowly lanceolate, usually pubescent on the calluses, lower 1/3 of the midveins, and margins (hairs sometimes restricted to the callus), hairs shorter than 1.2 mm, apices acute or acuminate, usually awned, awns to 12 mm;

paleas 2.6-4.5 mm, lanceolate to narrowly lanceolate, shortly pilose on the lower portion, apices acuminate;

anthers 1.1-2.2 mm, yellowish.

2-2.3 mm, fusiform, brown.

= 40.