Flora of North America species comparison

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

erect, ascending, or spreading, 9–48 cm × 0.6–1 mm.

basal sheaths brown to dark brown;

ligules 0.3–1.2 mm;

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

basal sheaths white or very light brown;

nonbasal sheaths 7–32 mm, sheath blades 0.9–11.9 cm × 1–7 mm;

leaf blades erect, ascending, or spreading, green or glaucous, 8–36 cm × 3–12 mm;

blades of vegetative shoots 0–3.5 times wider than bract blades.

0.5–1.6(–2) cm;

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

spikes (3–)4(–5) per culm, scattered;

peduncles of pistillate spikes exserted 0–9 cm; of staminate spikes exserted 0–9.5 cm;

bracts 2–11.8 cm × 1.3–4.8 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.

4–9 per spike, finely veined, elliptic-ovoid, 2.5–4 × 1.5–2 mm;

beak slightly bent, tapering.

slender ascending through entire orifice.

obvoid to broadly ovoid, 2.2–3.2 × 1.2–1.8 mm, slightly concave at maturity, tightly fitting in perigynia.

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.

spikes: the proximal basal, scattered, drooping.; pistillate scales keeled, 2.5–3.2 × 1–1.5 mm, midribs green, margins hyaline or, occasionally, reddish brown outward, apex cuspidate to acute, awn to 1 mm, proximal scale of lateral spike sterile or subtending a staminate flower.

1.1–2 mm.

2–3 mm.

spike 1, linear, 8–22 × 1.2–3 mm.; staminate scales obovate, 3.5–4.5 × 1–1.2 mm, midribs green, margins hyaline or reddish brown outward, apex acute.

= 44, 46.