Flora of North America species comparison

5-60 cm, erect to decumbent.

3-22 cm, erect.

basally concentrated;

ligules 1-2 mm, obtuse to truncate, entire;

blades 0.2-1.2 mm wide, flat to involute.

2.5-20 cm, diffuse at maturity, lower branches horizontal to descending, spikelets usually confined to the distal 2/3, pedicels scabrous, lacking tumid epidermal cells.

1-8.5 cm, compact to diffuse at maturity, lower branches erect to descending, usually spikelet-bearing to the base;

pedicels densely scabrous or with a few scattered scabrules, often with tumid epidermal cells.

2.5-7 mm, with 2-7 florets.

3.5-5 mm, with 2-7 florets.

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

lower glumes 0.4-1.3 mm;

upper glumes 0.9-1.8 mm;

calluses with a few hairs;

lemmas 1.5-2(2.2) mm, mostly herbaceous, glabrous or sparsely hairy on the lower 1/2, principally along the veins, backs rounded, 5-veined, veins obscure, not extending to the margins, apical margins hyaline and often yellowish, uniformly and densely scabrous, apices widely obtuse to truncate, entire;

palea veins shortly ciliate proximally, glabrous, sometimes scabrous distally;

anthers 0.4-0.8 mm.

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

lower glumes 1-2 mm;

upper glumes 1.8-2.2 mm;

calluses hairy;

lemmas 1.8-2.2 mm, mostly herbaceous, densely hairy over the proximal 1/2 - 3/4 of the veins, glabrous between the veins, backs rounded, 5-veined, veins obscure to prominent, not extending to the margins, apical margins hyaline, smooth or with a few scattered scabrules, apices obtuse to truncate, entire;

palea veins glabrous proximally, hairy at midlength, glabrous or scabrous-ciliate distally;

anthers 0.4-0.5 mm.

0.8-1.2 mm, obtuse to truncate, usually entire;

blades 1-7 mm wide, flat to involute.

= 14, 28, 42.

= 14.