OregonFlora species comparison

puberulent.

sheaths densely and softly retrorsely pubescent to pilose; upper sheaths sometimes glabrous;

blades 1–16 cm × 1–6 mm, softly hairy on both surfaces.

sheaths densely pilose; upper sheaths sometimes pubescent to glabrous;

blades 10–20 cm × 2–4 mm, generally pilose on both surfaces.

5–20 × 3–8 cm; open, nodding;

branches 1–4 cm, drooping, 1-sided and longer than the spikelets, usually at least 1 branch with 4–8 spikelets.

10–22 × 4–13 cm; open, nodding;

branches usually longer than the spikelets, spreading to ascending; slender, flexuous; somewhat drooping, sometimes sinuous.

10–20 mm, moderately laterally compressed, not densely crowded, 4–8 florets.

20–40 mm, lanceolate; terete to moderately laterally compressed, with 6–12 florets;

floret bases usually concealed at maturity;

rachilla internodes concealed at maturity.

villous, pubescent, or glabrous;

lower glumes 4–9 mm, 1-veined;

upper glumes 7–13 mm, 3–5-veined.

smooth or scabrous;

lower glumes 4.5–7 mm; (3)5-veined;

upper glumes 5–8 mm, 7-veined.

equal to or shorter than the paleas; thin, weakly inrolled or flat.

9–12 mm, lanceolate, glabrous or pubescent to pilose, 5–7-veined;

tips acuminate; hyaline; bifid, with teeth 0.8–2(3)mm, awned;

lemma awns 10–18 mm; straight.

7–9 × 1.2–2.2 mm, lanceolate; leathery; smooth proximally, scabrous on the distal half, obscurely (7)9-veined;

veins usually not raised and thickened;

margins hyaline, 0.3–0.6 mm wide, obtusely angled above the middle, not inrolled at maturity;

tips rounded to acute; bifid;

teeth shorter than 1 mm;

lemma awns 8–13 mm, strongly divergent at maturity, occasionally straight, twisted, flattened at the base, arising 1.5 mm or more below the lemma tips.

0.5–1 mm.

0.7–1.5 mm.

=14.

=14.