OregonFlora species comparison

intra- and extravaginal or mainly intravaginal.

intravaginal and extravaginal or mainly intravaginal.

sheaths closed to 25% of their length;

ligules 1–3 mm;

blades flat or folded, or slightly inrolled, 0.5–2 mm wide.

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.

erect, contracted, 1–3 cm long, usually exserted from the sheaths;

branches erect to steeply ascending; slender; to 1.5 cm.

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

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

3–4 mm, green or purple;

florets 2–3;

rachilla internodes less than 1 mm long; smooth.

4.2–7 mm, often purple;

florets 2–4;

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

lanceolate to broadly lanceolate, 2.4– 3.6(4) mm, usually equaling or exceeding the lowest lemma, frequently exceeding the upper florets;

lower glumes 3-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, 2.5–3 mm long, distinctly keeled; thin, glabrous;

keels and marginal veins rarely sparsely puberulent;

tips acute.

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

tips acute.

0.2–0.8 mm.

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

=14.