OregonFlora species comparison

basal branching intravaginal.

mainly basal;

sheaths open, glabrous, not conspicuously splitting between the veins;

blades (4)10–30 cm × 0.3–0.9 mm, conduplicate; flag leaves 1–8 cm;

hairs on inner leaf surface approximately as long as the leaf is thick;

leaves often pubescent on outer surface.

(2)5–9 cm;

branches 0.5–1.5 cm, appressed after anthesis.

(4.5)5–7.5(8.5) mm, 2–5 florets.

sparsely scabrous at the tip; acute to mucronate;

lower glumes 1.9–2.6(3) mm, 1-veined;

upper glumes (2.2)2.5–4(4.3)mm, 3-veined.

2.8–3.2 mm, glabrous.

apex glabrous.

cross sections 0.2– 0.5 × 0.4–0.9 mm, elliptic;

veins 5–7;

ribs 1–3; dorsal sclerenchyma bands more than 2 times as wide as thick, 3 at midrib and margins and sometimes with smaller bands between these.

(2.6)4–5(5.2) mm, 0(1)-veined, glabrous throughout or scabrous or ciliate near the tip;

lemma awns (0.5)1.5–2.2 mm, usually less than half as long as the lemma body.

2.1–2.6 mm.