Flora of North America species comparison

60-170 cm, erect;

nodes (5)6-8, pubescent;

internodes usually glabrous, sometimes pubescent near the nodes.

10-40 cm, erect or ascending, often puberulent below the panicle.

pilose, midrib of the culm leaves not abruptly narrowed just below the collar;

auricles absent;

ligules 2-4 mm, glabrous, truncate, erose or lacerate;

blades 20-35(37) mm long, 6-16 mm wide, flat, abaxial surfaces glabrous, adaxial surfaces pilose.

softly pubescent to pilose;

auricles absent;

ligules 1-3(4) mm, pubescent, obtuse, lacerate;

blades to 15 cm long, 1-5 mm wide, flat, pubescent on both surfaces.

10-25 cm, open, nodding;

branches ascending, spreading, or drooping.

2-10 cm long, 2-5 cm wide, erect, dense, often reddish brown;

branches 0.1-1 cm, ascending, never drooping, not readily visible, with 1 or 2 spikelets.

20-30 mm, elliptic to lanceolate, terete to moderately laterally compressed, with (4)6-10 florets.

18-25 mm, much longer than the panicle branches, densely crowded, subsessile, with parallel sides or widening distally, moderately laterally compressed, with 4-8 florets.

pubescent;

lower glumes 6-8.5 mm, 1(3)-veined;

upper glumes 8-11.5 mm, 3-veined, not mucronate;

lemmas 10-12 mm, lanceolate, rounded over the midvein, backs pubescent, margins more densely so, apices acute, entire;

awns 3.5-7 mm, straight, arising less than 1.5 mm below the lemma apices;

anthers 2-4 mm.

pilose, margins hyaline;

lower glumes 5-8 mm, 1(3)-veined;

upper glumes 8-12 mm, 3-5-veined;

lemmas 10-15 mm, linear-lanceolate, pubescent to pilose, 7-veined.

over the midvein, margins hyaline, apices acuminate, teeth 1-3 mm;

awns 8-20 mm, straight, reddish, arising 1.5 mm or more below the lemma apices;

anthers 0.5-1 mm.

= 28.

= 14, 28.