Flora of North America species comparison

spreading to erect, leafy, obtusely triangular.

arching-ascending, leafy, obtusely trigonous, slender;

principal leaves overtopped by inflorescence;

blades flat, to 3 mm, apex tapering, trigonous.

often exceeding inflorescences;

blades narrowly linear, proximally flat, 1–3 mm wide, apex trigonous, tapering.

terminal and axillary, clusters of 1–5 corymbs; leafy bracts much exceeding corymbs.

terminal and axillary, clusters 1–5 or more, compact, turbinate or hemispheric, 1–1.5 cm wide;

peduncles progressively shorter distally on culm;

bracteal leaves mostly exceeding subtended compounds.

few to several, on ascending, stiff, short-to-elongate branches, red-brown to brown, lanceoloid, (5–)6–10 mm, apex acuminate;

fertile scales many, ovate, shallowly convex, 5 mm, apex acuminate;

midrib short-excurrent or not.

rich deep brown, rarely pale brown, lanceellipsoid, 3.5–4(–5) mm;

fertile scale elliptic, 2.7–3 mm, apex acute or rounded, midrib shortexcurrent or not.

perianth absent.

perianth absent.

1.5 mm;

body dark brown to black, tumidly lenticular, nearly orbicular, 0.8–0.9 × 0.6–0.7 mm, margins grooved, discontinuous with tubercle;

surfaces transversely wavyrugose, ridges of contiguous rows of vertical, linear, raised cells;

tubercle broad, low triangular, 0.2–0.3 mm, crustaceous, base capping fruit summit, raised at ends, apex shortacuminate.

(1–)2–3(–5) per spikelet, (2–)2.5–3 mm;

body redbrown with pale central disc, stipitate, lenticular, obovoid, 1.2–1.5 × 0.7–1(–1.2) mm, margins pale, wirelike, surfaces slick;

tubercle triangular-subulate, (0.8–)1–1.2(–1.6) mm.