OregonFlora species comparison

nodes terete or weakly compressed.

intravaginal.

intravaginal and extravaginal or mainly intravaginal.

sheaths closed about 33% of their length;

ligules 0.5–3(5) mm;

blades flat or weakly folded, 1–10 cm × 1–3(6)mm; smooth.

sheaths closed up to 33% of their length, ligules of cauline leaves 1–3 mm, ligules of uppermost tiller leaves 0.5–2.5 mm long, blades of tillers with upper surface scabrous, minutely hairy, or puberulent on and between the veins;

cauline blades folded to involute; uppermost blades 1–2 mm wide.

1–7(10)cm;

branches ascending to spreading or reflexed.

erect, narrowly lanceoloid, contracted, moderately congested, 3–6 cm;

branches erect; slender; to 1.5 cm, 1–2 per node.

3–5 mm long;

florets 2–6;

rachilla internodes smooth, glabrous; more or less concealed, occasionally exposed;

distal rachilla internode less than 50(75)% of the length of distal lemma.

4.2–7 mm, often purple;

florets 2–4;

rachilla internodes 1–1.5 mm long; smooth, sometimes sparsely hispidulous.

lower glumes smooth, 1-veined.

lanceolate; (3.3)4.3– 5.7 mm;

lower glumes shorter than to equal to the lowest lemma, 3-veined;

upper glumes frequently longer than the lowest lemma, 3–5-veined, not exceeding the upper florets.

glabrous.

glabrous.

lanceolate, 2.5–4 mm, keeled; smooth; keels; marginal veins; and usually intermediate veins crisply puberulent to long-villous, rarely glabrous; area between veins glabrous;

tips obtuse to acute.

narrowly lanceolate, 4.1–5.8 mm; more or less keeled; thin, glabrous or sometimes puberulent;

tips acute.

0.6–1.1 mm, oblong.

usually 0.8–1.2(1.7)mm, occasionally aborted late in development.

=28.