Flora of North America species comparison

25-100 cm tall, 0.4-0.7(1.1) mm thick, usually erect, basal nodes sometimes geniculate, internodes mostly glabrous, pubescent just below the lower nodes;

nodes 2-4, glabrous.

glabrous, even on the margins, sometimes scabridulous;

collars glabrous, without tufts of hair at the sides;

ligules 1-5 mm, glabrous, acute;

blades 7-60 cm long, 0.2-1.5 mm wide, usually convolute, stiff, glabrous, scabridulous.

8-50 cm, loosely contracted, often partly enclosed at maturity;

branches 2-8 cm, glabrous;

pedicels 1-11 mm.

subequal, 5-13 mm long, 0.5-1.2 mm wide, narrowly lanceolate, glabrous, aristate;

florets (1.5)2.5-3 mm long, about 0.5 mm wide, widest at about midlength, somewhat laterally compressed;

calluses 0.2-0.5 mm, blunt, strigose, hairs reaching to about 1/4 - 1/3 the length of the lemmas;

lemmas finely tuberculate, rounded to the crown, midveins pubescent on the proximal 1/2;

crowns 0.1-0.2 mm long, 0.2-0.25 mm wide, straight-sided, rims with hairs shorter than 0.5 mm;

awns 45-100 mm, almost centric, cernuous throughout, twice-geniculate, usually both geniculations obscure;

anthers 3, 1.2-1.5 mm.

about 2 mm, linear, dark brown.

= 40.