OregonFlora species comparison

1–15, trigonous, 7–30 cm × 1.2–2.5 mm; soft (flattened in pressing).

trigonous to terete; (25)40–60(90) cm.

(2)7–22 cm × 2.2–4 mm.

(10)25–50 cm × 5–8(12) mm.

clusters head-like; dense, 7–17(35) mm wide;

rays (0)1–5, 2–32 mm; longest inflorescence bract erect or nearly so, appearing as continuation of culm; other bracts horizontal to ascending.

clusters head-like, globose; (10)20–40 mm diameter;

rays (0)3–10, 2.5– 5(12) cm;

inflorescence bracts 4–8; horizontal to ascending at 15–30°, 3–30(50) cm × 1.5–8(12) mm.

30–120, oblong-ellipsoid, compressed; (2)3–5(6) × 0.8–1.2 mm; greenish brown to purplish brown; floral scales (6)12–20(30), obovate to orbiculate, 0.6–0.8 × 0.6–0.8 mm, stramineous to deep purple with clear margins; mid-stripe greenish, stramineous, or purplish;

lateral ribs 0; medial ribs 3;

apex mucronulate.

(20)30–50(70), oblong, compressed, 5–20 × 2.2–3 mm; floral scales (12)20–30(50); ovate-deltate, 2–2.3 × 1–1.4 mm; off-white to golden brown, basally 2-keeled;

lateral ribs 0, declined 30–40° from rachilla.

anthers 0.1 mm;

styles 0.1 mm;

stigmas 0.1–0.3 mm.

anthers 1–1.2 mm;

styles 1–1.2 mm;

stigmas 0.5 mm.

obovoid-ellipsoid, 0.6–0.8 × 0.3–0.4 mm (as long as subtending scale);

base cuneate.

broadly ellipsoid, 1.2–1.4 × 0.5–0.6 mm;

stipe to 0.1 mm;

beak 0.2–0.3 mm.