OregonFlora species comparison

bulbous at the base;

nodes terete.

intra- and extravaginal or mainly intravaginal.

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 about 25% of their length;

basal sheaths swollen at the base;

ligules 1–3 mm;

blades flat, 1–2.5 mm wide; soon withering.

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

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

ovoid, 3–12 cm;

branches 2–5 per node, ascending to spreading.

3–4 mm, green or purple;

florets 2–3;

rachilla internodes less than 1 mm long; smooth.

3–5 mm;

florets 3–7, commonly all or all but the lowest producing bulblets, occasionally all producing seeds.

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.

keels scabrous;

lower glumes 3-veined;

upper glumes shorter than or subequal to lowest lemma.

glabrous.

with cobwebby hairs or glabrous.

lanceolate, 2.5–3 mm long, distinctly keeled; thin, glabrous;

keels and marginal veins rarely sparsely puberulent;

tips acute.

lanceolate, 3–4 mm, distinctly keeled, glabrous throughout, or keels and marginal veins shortto long-villous; area between veins glabrous or softly puberulent;

tips acute.

0.2–0.8 mm.

developed and 1.4–2 mm, or aborted late in development, or not developed.

=14.

=21–42.