OregonFlora species comparison

glabrous, 1–3 exposed nodes, branching intravaginal.

mainly basal;

sheaths open, glabrous, sometimes turning brown with contrasting white veins, usually not conspicuously splitting between the veins;

blades mostly 10–25 cm but the lower few blades greatly reduced, mostly 1–4 cm × 0.8–2(2.5)mm, conduplicate; flat, or loosely rolled, green;

inner surface with very short hairs;

outer surface glabrous; flag leaves 4–8(12)cm;

collars glabrous.

4–12(15)cm;

branches 1.5–3 cm, appressed after anthesis.

9–12 mm; (2)3–6(7)florets.

scabrous at the tips;

lower glumes (2.4)3.5–5 mm, 1-veined;

upper glumes 4.5–6(7.5) mm, 3-veined.

3.5–5 mm;

tips densely hairy.

apex densely hairy.

cross sections 0.4–0.9 × 0.6–1.3 mm, elliptic;

veins 7–12;

ribs 5–10, some of the dorsal sclerenchyma bands more than 2 times as wide as thick; ventral sclerenchyma bands often present on the tops of the ribs.

(5.5)6.5–8 mm, 0(1)-veined, glabrous or minutely scabrous on the tips and/or along the margins; awnless or awned;

lemma awns 0–0.5(1.4) mm.

(2)3–4(5) mm.

=28.