OregonFlora species comparison

often vertical, 1–6 mm thick.

1.5–5 mm thick.

sharply trigonous;

sides convex to concave proximally, deeply concave to flat distally, 10–200 cm × 1–6 mm.

sharply trigonous, 50–150 cm × 2–4 mm.

proximally V-shaped, distally trigonous to asymmetrically laterally flattened in cross section;

distal blade (1)2–5 times as long as sheath, 50–750 × 2–9 mm.

thickly V-shaped in cross section; shorter than to equaling sheath length.

proximal bract usually erect, resembling leaf blade but trigonous proximally; (1)3–20 cm.

proximal bract usually erect, trigonous, 2–7 cm.

1–5(10), sessile, 5–23 × 3–5(7) mm; floral scales bright (to very dark) orange-, red-brown, or purplish brown to straw-colored, often with prominent linear dots;

midrib mostly paler; ovate, 3.5–6 × 2–3 mm; smooth or awn sparsely spinulose;

margins deciduously ciliolate;

apex acute (to obtuse); notch (0.3)0.5–1 mm deep; awn mostly irregularly bent, 0.5–1.5(2.5) mm.

1–35; in clusters or solitary; clusters sessile or on branches to 4 cm long;

spikes 5–12 × 3–4 mm; floral scales ovate, 3–3.5 × 2.5 mm; straw-colored to orange-brown or midrib greenish, usually with linear spots;

midrib proximally long-scabrous;

apex acute to rounded; notch 0.3 mm deep; awn 0.3 mm, sparsely long-scabrous.

perianth members 4–8, sometimes fewer; bristle-like; equal or unequal; all equaling achene body to all rudimentary, retrorsely spinulose, brown;

stigmas 2–3.

perianth members 4–6; bristle-like, equaling to less than 50% of achene body, retrorsely spinulose, brown;

stigmas 2.

biconvex to compressed bluntly trigonous; (2)2.5–3.5 × 1.3–2.3 mm;

beak 0.1–0.5 mm.

biconvex, 2–2.5 × 1.5–2 mm;

beak 0.1–0.2 mm.

=74, 78.

=42.