Flora of North America species comparison

50-100 cm, erect.

20-70 cm, erect.

to 30 cm long, to 8.2 mm wide, apices acute.

2-22 cm long, 4-10 mm wide, flat or folded, apices obtuse or mucronate.

with 1-3 branches;

branches 5-13 cm.

with 3-10 branches;

branches 3-9 cm.

3-3.7 mm;

florets 3.

2-2.5 mm;

florets 2.

1.8-2 mm, apices acute to obtuse;

upper glumes 2.2-3.1 mm, oblanceolate, truncate to occasionally bilobed, lobes obtuse, awned from between the lobes, awns 0.5-1 mm;

calluses with tufts of hairs, hairs to 0.6 mm;

lowest lemmas 2.9-3.7 mm, ovate, tan to light brown at maturity, lateral veins and keels with appressed, whitish to golden hairs, hairs to 0.7 mm, apices acute, awned, awns 0.4-0.6 mm, arising from just below the apices;

second lemmas 1.5-2.6 mm, obovate, acute, mucronate.

0.9-1.3 mm, acute;

upper glumes 1.6-1.8 mm, obovate, apices bilobed, lobes obtuse, awned, awns 0.4-0.7 mm;

calluses sparsely hairy;

lowest lemmas 2.1-2.5 mm, ovate, tawny to reddish-brown at maturity, lateral veins and keels with spreading, white, 0.5-1 mm hairs, apices mucronate;

second lemmas 1.2-1.5 mm, obconic, truncate.

about 1.7 mm.

1.1-1.2 mm.

= unknown.

= unknown.