Flora of North America species comparison

80-120 cm.

30-75 cm.

glabrous, rounded;

ligules to 0.5 mm, membranous, ciliate;

blades 1.5-5 mm wide, tapering and involute distally.

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

branches appressed or narrowly ascending;

pedicels 2-3(3.5) mm.

5-8(10) cm long, 1.2-2.5 cm wide, dense;

branches 0.5-3 cm, erect to ascending;

pedicels 1-3 mm.

7-10 mm, with 3-5 florets.

5-10 mm, with 5-12 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.

glabrous, usually tinged with pink, 1-veined;

lower glumes 3-4.5 mm;

upper glumes 4-4.5(5) mm;

lemmas 3-5 mm, usually tinged with pink, midveins and margins pubescent on the basal 1/3 - 1/2, midveins shortly excurrent, lateral veins pilose to midlength, terminating before the distal margins;

paleas 0.5-1 mm, shorter than the lemmas, scabrous on the veins, broadened below, bases bowed-out at maturity;

anthers 1-1.5 mm.

2-2.5 mm.

(1)1.5-2 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.

= unknown.