OregonFlora species comparison

glabrous or hairy or occasionally hairy only at the nodes; lowest internode including sheath approximately 3 mm thick.

ligules 0.1–0.8 mm;

blades flat, 2–8 mm wide.

spikes 8–21 cm; middle internodes 7–12 mm; inflorescence axes pubescent.

11–18 mm, 3–10 florets.

glabrous or with appressed hairs;

midvein usually more prominent and longer than the lateral veins;

tips obliquely truncate or obtuse to acute or occasionally short-pointed;

lower glumes 4.5–7.5 × 1.5–2.5 mm, 5–6-veined;

upper glumes 5.5–8 × 2–3 mm, 5–7-veined.

usually glabrous, sometimes scabrous over the veins.

7.5–10 mm, glabrous or with hairs 1–1.5 mm;

lemma awns; if present; to 5 mm.

5–7 mm.

usually glabrous, sometimes with hairs on the outer edges.