OregonFlora species comparison

erect.

often decumbent or geniculate.

sheaths glabrous or pubescent;

blades 1.5–6 mm wide;

outer surfaces usually glabrous;

inner surfaces with appressed hairs.

sheaths glabrous;

blades 3–4 mm wide, glabrous or hairy;

lower surfaces less densely hairy and with shorter hairs than the upper surfaces.

3.5–26 cm; erect to slightly nodding, 1 spikelet per node but occasionally with 2 at a few nodes;

internodes 3.5–15 mm;

disarticulation above the glumes; beneath each floret.

(3)5–9 cm; erect, 1 spikelet per node;

internodes 4–5.5 mm;

disarticulation above the glumes; beneath each floret.

8–31 mm, 1.5–3 times longer than the internodes, appressed, 3–11 florets, glabrous or hairy;

hairs to 1 mm.

(9)10–15(17)mm, appressed; (3)4–5 florets;

rachillas hairy;

hairs about 0.4 mm.

5–14 mm, 50–75% the length of the adjacent lemmas, 0.7–1.3 mm wide, lanceolate, glabrous or hairy; smooth or scabrous, 3–5-veined; flat or weakly keeled;

keels straight;

margins narrow, tapering from the base or from beyond mid-length;

tips acute to acuminate, sometimes mucronate or short-awned.

8–12 × 1.2– 2 mm; about 75% as long as to equaling the adjacent lemmas, narrowly ovate to obovate, often purplish, glabrous or occasionally scabrous;

keels smooth but occasionally scabrous, 3(5)-veined, glabrous;

margins unequal; the wider margin 0.3– 1 mm wide, usually widest in the distal 33%;

tips acute to rounded, often awned;

glume awns; if present; to 2 mm.

7–12 mm, glabrous to densely long-hairy; all hairs similar, sometimes scabrous;

tips acute to awned;

lemma awns; if present; to 2 mm; straight.

(6.4)8–9.5 mm, glabrous to pubescent; all similar, usually awned;

lemma awns; if present, 0.5–3 mm; straight.

2.5–6 mm.

0.7–1.3 mm.