Flora of North America species comparison

5-40 cm, usually erect.

5-12 cm, erect to decumbent.

basally concentrated;

ligules 0.8-2.2 mm, obtuse to acute, mostly entire, sometimes slightly erose;

blades involute, 1.2-1.9 mm wide when flattened.

2-18 cm, compact to diffuse at maturity, lower branches ascending to descending, usually spikelet-bearing to the base;

pedicels scabrous, lacking tumid epidermal cells.

1-4 cm, contracted at maturity, lowest node with 2(3) branches, lower branches erect to ascending, spikelets usually confined to the distal 1/3, pedicels scabrous, lacking tumid epidermal cells.

3.5-8 mm, with 2-6 florets.

3.5-6.5 mm, with 2-4 florets.

rounded over the back, veins obscure, apices acute to obtuse;

lower glumes 0.7-1.5 mm;

upper glumes 1.4-3 mm;

calluses with a few hairs;

lemmas 2.4-4 mm, herbaceous, mostly smooth, usually glabrous, sometimes with a few hairs near the base, principally along the veins, backs usually rounded, sometimes weakly keeled distally, 5-veined, veins obscure, midveins often slightly scabrous and prominent in the distal 1/2, often extending to the apical margins, lateral veins not extending to the margins, apical margins ranging from smooth to scabrous, entire, not white, apices acute, entire;

palea veins glabrous or shortly ciliate proximally, uniformly scabrous distally;

anthers 1-2 mm.

rounded over the back, veins obscure, apices acute to obtuse;

lower glumes 0.7-2 mm, less than (1/2)2/3 as long as the adjacent lemmas;

upper glumes 1.5-2.8 mm, broadly elliptic;

rachilla internodes slightly and gradually broadened to the point of attachment with the lemmas, at least the lowest internode usually more than 0.09 mm thick;

calluses with a few hairs;

lemmas 2.8-3.8 mm, herbaceous, hairy on the lower 1/2 along and between the veins, backs rounded, 5-veined, veins obscure, not extending to the margins, apical margins herbaceous, scabrous or scabridulous, apices acute or somewhat obtuse, entire or erose, slightly incurved;

palea veins with curly, intertwined hairs proximally, scabrous distally;

anthers 0.7-1.1 mm.

0.8-2 mm, acute or obtuse, entire;

blades usually involute and 0.5-1.1 mm in diameter, sometimes flat and 0.7-2.5 mm wide.

= 14.

= 28.