OregonFlora species comparison

2–4 mm thick.

sheaths densely, often retrorsely; hairy;

hairs sometimes confined to the throat;

blades 4–26 cm × 3–10 mm; flat, glabrous or pilose on both surfaces.

9–28 cm; open; erect or nodding. lower nodes with 1–4 branches; lower branches less than 10 cm, spreading or ascending, with 1–5 spikelets.

17–30 mm; shorter than some pedicels and branches, elliptic to lanceolate, strongly laterally compressed, not crowded, with 6–12 florets.

glabrous, scabrous, or pubescent;

lower glumes 7–12 mm, 5–7-veined;

upper glumes 9–13 mm; (7)9(11)-veined.

11–20 mm, lanceolate, laterally compressed, strongly keeled, glabrous or scabrous, sometimes pubescent distally; (9)11–13-veined;

veins often raised;

margins hyaline; whitish or partly purplish;

tips entire or toothed;

teeth acute; shorter than 1 mm; awnless or shortawned;

lemma awns; if present; up to 4 mm.

2–4 mm in cross-pollinating florets, approximately 0.5 mm in self-pollinating florets.

=42.