OregonFlora species comparison

ligules 2.3– 7 mm;

tips acute, usually lacerate;

blades 6–20 cm × 2–5 mm; flat.

ligules 0.7–5 mm;

tips usually rounded, sometimes truncate or acute; erose-ciliate;

blades 4–14 cm × 1–2 mm;

basal blades mostly involute;

cauline blades usually flat.

7–22 × 1.5–5.5(7)cm; narrow to widely open; lowest node with 2–15 branches;

branches ascending to more or less appressed, mostly branching at or above mid-length; some branching near base.

(4)8–25(50) × 0.5–20 cm; diffuse, often almost as wide as long; lowest node with (1)2– 7(12) branches;

branches capillary; flexible, strongly spreading, not spikelet-bearing and usually not branched on the lower 50%, dark purple; lower branches 4–12 cm;

disarticulation at the panicle base and beneath the florets.

lanceolate, yellow-green, often tinged with purple.

2.5–4 mm, scabrous or minutely so on the margin at least distally, occasionally over the back;

tips acute, sometimes toothed;

teeth to 0.2 mm.

1-veined;

keels scabrous at least distally;

tips acuminate;

lower glumes 1.8– 3.4 mm;

upper glumes slightly shorter.

with conspicuous hairs 0.8–2 mm.

with sparse hairs to 0.2 mm.

2–3 mm, 5-veined;

tips acute; entire to erose, sometimes toothed;

teeth to about 0.2 mm; awnless.

1.4–2 mm, scabrous to smooth, 5-veined;

veins extended into minute teeth;

tips acute to obtuse, usually entire; awnless or awned;

lemma awns; if present, 0.2– 3 mm, arising below mid-length; bent or straight.

absent or minute.

absent or to 0.3 mm.

1.5–2.3 mm.

0.4–0.8 mm, usually not retained after anthesis.

=42.

=42.