OregonFlora species comparison

20–55 cm × 8–16 mm.

13– 26 cm × 3–7 mm.

terminal;

branches ascending and drooping.

terminal.

aggregated in a few dense clusters of 12–130;

spikes sessile, narrowly ovoid, 4–5 × 1.8–2.3 mm; floral scales 1.6–2.8 mm; black or brownish black with pale midribs;

apex with awn 0.4–0.6(1.2) mm.

in dense clusters of 2–20;

spikes sessile; ovoid or narrowly ovoid, 2.5–6 × 1–3 mm; floral scales 1.5–2.7 mm; black with pale midribs;

apex short-awned; awn 0.2–0.4 mm.

perianth bristles persistent, 6; rather stout; straight or curved; longest bristles equaling achene, with retrorse teeth in distal 0.3–0.5, enclosed within floral scales;

stigmas 3.

perianth bristles persistent, 6; slender, contorted; much longer than achene and projecting beyond it, with scattered, often inconspicuous; antrorse teeth in distal 50%, enclosed within floral scales or some bristles projecting;

stigmas 3.

plumply trigonous or plano-convex, 0.8–1.2 × 0.4–0.6 mm.

plumply trigonous or plano-convex, 0.9–1.3 × 0.6–0.8 mm.

=56.