OregonFlora species comparison

basal branching intravaginal.

mainly basal;

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

collars glabrous;

ligules 0.15–0.3 mm;

blades (5)11–23(30)cm × 0.2–0.4(0.6)mm, conduplicate; very fine;

outer surface usually glabrous;

inner surface with very short hairs; lower blades normally developed; flag leaves 0.5–5 mm.

1–4(8)cm;

branches 0.5–1.5(2)cm, appressed after anthesis.

3–6(6.5) mm, 2–6 florets.

glabrous or scabrous;

lower glumes 1–2.5 mm, 1-veined;

upper glumes 1.7–2.3(3.9) mm, 3-veined.

1.5–2 mm, glabrous.

apex glabrous.

cross sections 0.2–0.4(0.6) × 0.3–0.6 mm, elliptic;

veins (3)5(7); rib 1; dorsal sclerenchyma in broad bands more than twice as wide as thick.

2.3–4(4.4)mm, 0(1)-veined, scabrous on upper part only; awnless or short-awned;

lemma awns 0–0.6 mm; less than 10% as long as the lemma body.

1.5–2.2 mm.