Flora of North America species comparison

15-85 cm, glabrous, bases dull gray-brown;

nodes 2-6;

basal branching mostly extravaginal, lower nodes sometimes with intravaginal branches.

glabrous, basal sheaths dull gray-brown;

ligules 0.1-0.2 mm, truncate, abaxial surfaces puberulent, ciliolate to ciliate, hairs longest (1.5-4 mm) towards the sides of the leaves, at the top of the sheaths;

blades 1-9(25) cm long, those of the innovations the longest, 1-1.5 mm wide and flat or conduplicate, or to 0.5 mm in diameter and convolute, straight to almost falcate, abaxial surfaces of the innovation leaves glabrous or pubescent, adaxial surfaces usually glabrous, sometimes slightly scabrous.

3-20 cm, ovoid, lax, partially included in the upper leaf sheaths;

branches ascending to divergent;

pedicels 1-1.5 mm.

5-8 mm.

from shorter than to subequal to the florets, linear-lanceolate, hyaline, smooth, ecostate or with 1 inconspicuous vein, apices attenuate;

lower glumes 2.5-5 mm;

upper glumes 4.5-6.5 mm;

florets (4)5-7.5 mm;

calluses 1-1.5 mm, strigose, hairs white;

lemmas about 0.3 mm thick, mostly scabrous, strigose over the midvein, tapering to the apices, pappus hairs 5-8 mm;

awns 15-30 mm, scabrous, weakly geniculate;

paleas 1-2.5 mm, from 1/3 - 1/2 the length of the lemmas, hyaline, glabrous, weakly 2-veined;

lodicules 2, 0.8-1 mm, linear.

4-5 mm, narrowly lanceoloid.

= 40.