Flora of North America species comparison

1.5–5 mm diam.

sharply trigonous, 0.5–1.5 m × 2–4 mm.

3–4, basal, smooth;

sheath fronts not pinnate-fibrillose;

blades 1 or 2, thickly V-shaped in cross section, to equaling sheath length.

1–2 timesbranched or subcapitate or of 1 spikelet, branches to 4 cm;

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

1–35, in clusters or solitary, 5–12 × 3–4 mm;

scales straw-colored to orange-brown or midrib greenish, usually clearly lineolate-spotted, ovate, 3–3.5 × 2.5 mm, flanks ribless, midrib proximally spinulose, apex acute to rounded, notch 0.3 mm deep, awn 0.3 mm, sparsely spinulose.

perianth members 4–6, brown, bristlelike, equaling to less than 1/2 of achene body, retrorsely spinulose;

anthers 2 mm;

crest short, spinulose;

styles 2-fid.

brown, biconvex, ovoid to obovoid, 2–2.5 × 1.5–2 mm;

beak 0.1–0.2 mm.

= 42.