OregonFlora species comparison

3–10 mm thick.

5–8 mm thick; tubers absent.

cylindric, 50–300 cm × 2–10 mm.

cylindric, 150–250 cm × 4–8 mm.

thin; C-shaped to dorsiventrally flat in cross section; much shorter to longer than sheath;

distal blade to 220 × 5 mm.

C-shaped to dorsiventrally flat in cross section, usually much shorter than sheath;

distal blade 2–200 × 1–4 mm;

margins often scabridulous.

proximal bract usually erect, thickly C-shaped to subterete, 1–8 cm.

proximal bract usually erect, thickly C-shaped to subterete in cross section, 1–15 cm.

15–200; solitary or less often in clusters of 2–4(7); clusters on branches to 15(25) cm long;

spikes 3–17 × 2.5–4 mm; floral scales ovate, 2–3.5 × 1.5–2 mm, uniformly dark to pale orange-brown, sometimes straw-colored, sometimes with prominent linear dots;

midrib often pale or green, sparsely (rarely densely) reddish or straw-colored scabrous on awn and distal parts of midrib and sometimes flanks;

margins ciliate;

hairs contorted;

apex obtuse to rounded; notch 0.2–0.3 mm deep; awn straight or bent, 0.2–0.8 mm.

5–30; solitary or rarely 2 together; on stalks to 9 cm, 5–15 × 3–4 mm; floral scales light orange-brown to nearly colorless, usually with faint linear dots; midribs ovate-oblong, 3–4 × 1.5 mm, often greenish; sparse reddish or straw-colored scabrous on awn, sometimes distal midrib; and rarely adjacent parts of sides;

margins ciliate;

hairs contorted;

apex obtuse; notch 0.5 mm deep; awn straight to slightly contorted, 0.3–1 mm.

perianth bristles 6; more or less equaling achene, densely retrorsely spinulose, brown;

stigmas 2, sometimes 3 near spike apex.

perianth members 4(5); bristle-like, equaling achene body or 2 of them much shorter, sparsely retrorsely spinulose, brown;

stigmas 3.

plano-convex, 1.5–2.8 × 1.2–1.7 mm;

beak 0.2–0.4 mm.

compressed-trigonous, 2.2–3.2 × 1.4–1.9 mm;

beak 0.3–1 mm.

=42.

=38.