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.

with bases somewhat compressed-keeled;

internodes glabrous; shiny below the nodes.

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 2–7(11) cm × 1–2.8(4)mm; flat, occasionally conduplicate;

lower surface smooth or minutely scabrous;

upper surface minutely scabrous;

margins and midveins not conspicuously thickened; greenish;

tips acute.

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.

6–21 × 4–16 cm, broadly ovoid; open;

branches whitish;

primary branches 3–12 cm × 0.05–0.1 mm; capillary; lower branches spreading, not appearing clustered;

pedicels 3–14 mm; longer than the spikelets.

1.5–3.8 mm, often purple-tinged.

1.2–2.1 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.

equal, 0.6–1.7 mm, 1-veined; purplish, minutely scabrous particularly on the veins;

tips acute.

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.

1.2–2.1 mm, lanceolate to oblong-elliptic; somewhat gray, glabrous; smooth, occasionally minutely scabrous near the tips;

tips acute; awnless or mucronate; the mucros to 0.3 mm.

0.3–0.5 mm; yellowish to purplish.

1–1.3 mm; greenish yellow to purplish at maturity.

=40.

=20, 22, 28.