OregonFlora species comparison

erect.

20–95 cm.

sheaths glabrous or pubescent;

blades 1.5–6 mm wide;

outer surfaces usually glabrous;

inner surfaces with appressed hairs.

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.

4–26 cm;

internodes 3.5–13 mm; hairy at least distally.

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

hairs to 1 mm.

9–31 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.

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.

densely hairy;

hairs flexible, usually many longer than 1 mm.

2.5–6 mm.

hairy between the keels;

keels hairy proximally.