Flora of North America species comparison

20–60 cm, 2–3.5 mm wide basally, 0.5–1 mm wide distally.

usually curved, bluntly trigonous, 1–25(–44) cm smooth-angled distally.

sheaths tight, green, rarely white spotted, fronts hyaline, slightly thickened at mouth;

ligules to 5 mm, longer than wide;

widest leaf blades (1.9–)2.5–5 mm wide.

basal sheaths brown to dark brown;

ligules 0.3–1.2 mm;

blades involute, usually ± equaling culms, 0.5–2 mm wide.

forming dense heads, with 3–8 spikes, 0.6–2 cm × 5–10 mm;

proximal bracts 1–5 cm;

spikes with 4–20 ascending to spreading perigynia.

0.5–1.6(–2) cm;

spikes ca. (1–)3–7, essentially indistinguishable in dense ovoid to hemispheric head.

pale green to pale yellow, veinless or to weakly 8-veined abaxially, 2.5–3.2 × 1.4–2 mm, body elliptic to circular, widest at 0.4–0.55 length of body, margins serrulate distally;

beak 0.7–1.1 mm, apical teeth 0.3–0.5 mm.

pale yellowish brown proximally, darker brown on beak and distally, essentially veinless to finely 3–12-veined abaxially, essentially veinless adaxially, ± inflated, ovate to broadly ovate, (3–)3.2–5.1 × (1.4–)1.6–2.3(–2.7) mm, papery or leathery, dull to satiny;

stipe 0.2–0.7 mm;

beak 0.5–1 mm, scabrous-margined or, occasionally, smooth.

circular, 1 × 1 mm.

scales hyaline with green midvein, ovate, 1–1.8 × 0.8–1.4 mm, body not more than 1/2 length of perigynium, apex acuminate to short-awned.

scales pale brown to dark brown, usually with broad whitish hyaline margins, broadly ovate to nearly orbicular, shorter than perigynia, apex obtuse to acute, body shiny, ± translucent.

0.7–1.3 mm.

1.1–2 mm.

= 48.