Flora of North America species comparison

7-35(60) cm, erect or decumbent.

30-80(90) cm.

rounded below, margins and apices hairy, hairs to 3 mm;

ligules 0.3-1 mm;

blades 2-12(20) cm long, 2-6 mm wide, flat, abaxial surface glabrous, adaxial surface scabridulous, sometimes sparsely hispid, margins ciliate-pectinate.

shiny and indurate basally, glabrous or appressed hairy elsewhere, hairs to 4 mm;

ligules 0.2-0.6 mm;

blades 5-22(28) cm long, 0.8-2(2.2) mm wide, flat to v-shaped in cross section, folded or involute when dry, green, remaining so well into winter, glabrous abaxially, mostly glabrous adaxially but densely pilose basally, margins glabrous or scabridulous.

4-15(18) cm long, 0.3-6 cm wide, open (contracted when immature), pyramidal;

lower nodes with 7-12(15) branches;

primary branches 0.5-4.5 cm, spreading 30-90° from the rachis, with elongated glands, without spikelets on the lower 1/3 – 1/2, secondary branches appressed;

pedicels 0.1-0.5 mm, appressed.

10-25 cm long, 2-10(13) cm wide, longer than wide, open (contracted when immature), not diffuse, pyramidal to ovate;

lower nodes with 1-2(3) branches;

primary branches 2-9(10) cm, ascending or spreading to 80° from the rachis, not capillary, without spikelets on the lower 1/3;

secondary branches mostly appressed;

pulvini glabrous or hairy;

pedicels 0.5-4(8) mm, usually shorter than the spikelets, appressed, glabrous.

1.2-1.8 mm, plumbeous or brownish, often secund along the branch.

3.5-6.6 mm, purplish-brown.

unequal, ovate to obovate, membranous;

lower glumes 0.3-0.7 mm, without midveins;

upper glumes 1.2-1.8 mm, at least 2/3 as long as the florets, often longer;

lemmas 1.2-1.7 mm, ovate to elliptic, membranous, glabrous, acute;

paleas 1.1-1.6 mm, ovate to elliptic, membranous, glabrous;

anthers 0.2-0.4 mm, yellowish or purplish.

equal to subequal, linear-lanceolate, membranous;

lower glumes (2.9)3.5-6.2 mm, 0.9-1.2(1.3) times as long as the upper glumes;

upper glumes 3.2-6.6 mm, from almost as long as to longer than the florets;

lemmas 3.4-4.5 mm, ovate to lanceolate, membranous, glabrous, acute;

paleas 3.4-4.5 mm, ovate, membranous, glabrous;

anthers 1.5-2.8 mm, yellow to purplish.

0.6-1 mm, obovoid, faintly striate, light brownish.

1.1-1.4 mm, fusiform, reddish-brown.

= 24, 36, 54.

= unknown.