OregonFlora species comparison

erect or ascending.

auricles 0.5–1 mm, pubescent;

ligules 2–7 mm, truncate;

blades 1–31 cm × 3–10 mm.

blades to 25 cm on sterile shoots; much reduced on culms, 2.5–5.5 mm wide, narrowed at the base; dorsal surfaces glabrous and shiny; ventral surfaces hairy; flag leaves 1–3(6)cm × 3–4.5 mm.

dense; spike-like; (3)4–14 × 0.7–1.8 cm, often widest near the base; lowest branches 1–2.5 cm.

(5)7.5–15 cm; open.

6–10 mm.

4–6.3 mm.

unequal, exceeding the florets;

lower glumes 3–4 mm, 1(3)-veined;

upper glumes 7–10 mm, 3-veined.

4–6.3 mm; ovate, exceeding the florets, glabrous; hyaline and more or less transparent, white to light brown, tinged with green or purple on the back near the base.

lower 2 staminate, 3–4 mm, pubescent;

tips awned;

lemma awns of lowest lemma about 3 mm, arising near or above mid-length; straight or bent, those of the second lemma 7–10 mm, arising near the base; bent and twisted, equaling or slightly longer than upper glumes; upper lemmas bisexual, 1–2.5 mm; hard, glabrous, brown;

tips acute; awnless.

lower lemmas staminate, 3–5 × 1.1–1.5 mm; length/width ratio usually less than 4; more or less hairy all over, with hairs 0.5–1 mm on margins; to 0.5 mm toward the tips;

tips acute to awned, awns of lower lemmas 0.1–1 mm; upper lemmas bisexual, 2.9– 3.5 mm; shiny; hard; hairy distally; the hairs 0.5–1 mm and with bases strongly divergent from the lemma surface; acute.

(2.9)3.5–4.8(5.5)mm.

1.6–2.1 mm in lower, staminate florets, 1.2–1.3 mm in upper; bisexual florets.

=10, 20.