OregonFlora species comparison

0.5–2 mm thick; much branched above the base, not nodulose;

internodes dull, puberulent or glabrous for most of their length, sometimes strigose immediately below the nodes.

often rooting at the lower nodes, not nodulose;

internodes glabrous.

blades 2–20 cm × 2–6 mm; flat, scabrous or smooth, those of the secondary branches similar in length and width to those of the main branches.

blades 1–4(6) cm × 0.6–1.6 mm; flat or involute; lower/outer surface smooth or minutely scabrous; upper/inner surface scabrous or pubescent.

terminal and axillary, 2–21 × 0.3–3 cm; dense, appressed or diverging up to 30° from the inflorescence axis;

primary branches 0.3–5.5 cm × over 0.1 mm.

spike-like, 1.6–6 × 0.2–0.5 cm, interrupted near the base; long-exserted from the upper leaf sheath;

primary branches 0.9–1.2 cm ×over 0.1 mm, appressed at maturity or diverging 30(40)°;

pedicels 1–3 mm, scabrous.

1.5–3.8 mm, often purple-tinged.

1.5–3.2 mm.

subequal, 1.5–3.7 mm, approximately as long as or slightly shorter than the lemmas, 1-veined, tapering from the bases to the acuminate tips; awnless or awned; awns; if present; to 2 mm.

greenish gray, glabrous, 1-veined, rounded to subacute;

lower glumes 0.6–1.4 mm;

upper glumes 0.7–1.7 mm;

tips rounded to subacute.

1.5–3.8 mm, lanceolate, pubescent on calluses and lower portion of the midveins and margins;

hairs shorter than the florets; less than 1.5 mm long;

tips minutely scabrous, acuminate; awnless or awned;

lemma awns 0–10 mm.

(1.5)1.8–2.5(3.2)mm, lanceolate; dark greenish, appressed-pubescent on the margins and midveins;

hairs shorter than 0.3 mm;

tips minutely scabrous; acute to acuminate; awnless, sometimes with small points at the tip.

0.3–0.5 mm; yellowish to purplish.

0.5–1.2 mm; purplish.

=40.

=18.