Flora of North America species comparison

80-120 cm.

30-100 cm;

lower nodes sometimes sparsely bearded.

glabrous, not or obscurely keeled;

ligules to 0.5 mm, membranous, ciliate;

blades 1-4 mm wide, folded or involute, glabrous, apices sharp.

9-15 cm long, 1-4 cm wide, nodding, purplish;

branches appressed or narrowly ascending;

pedicels 2-3(3.5) mm.

8-25 cm long, 0.5-1.3 cm wide, dense;

branches appressed, lowest branches 2-6 cm;

pedicels 1-2 mm.

7-10 mm, with 3-5 florets.

4-10 mm, with 4-11 florets.

glabrous, 1-veined;

lower glumes 3.5-4.5 mm;

upper glumes 4-5 mm;

calluses sparsely pilose;

lemmas 4-5 mm, veins pilose at least to midlength, all 3 veins excurrent as short points;

paleas 3-3.5 mm, glabrous, bases bowed-out;

anthers 1-2(2.5) mm.

about as long as the adjacent lemmas, thin, 1-veined, acute or apiculate;

lower glumes 4-4.5 mm;

upper glumes 4-4.5 mm;

lemmas 3-4(5) mm, thin, papery, mostly white, often purple distally, glabrous or the lateral veins with a few short hairs towards the base, all veins ending before the distal margin;

paleas 3-3.5 mm, glabrous, bowed-out at the base;

anthers 1-1.5 mm.

2-2.5 mm.

1.5-1.8 mm.

sheaths pilose;

ligules about 0.5 mm, membranous, ciliate;

blades 2-7 mm wide, flat, both surfaces sparsely pilose basally, margins smooth or scabridulous;

upper leaves with glabrous sheaths and blades.

= unknown.

= 60, 64, 72.