Flora of North America species comparison

erect to arching-ascending, leafy, wand-like.

lax, filiform, leafy.

mostly basal, few and increasingly distant upculm, shorter than scape;

blades narrowly linear, concave proximally, (1–)2–3 mm wide, tapering and increasingly involute-sulcate proximally, margins scabrid, apex triquetrous, tip narrow but blunt.

spreading to ascending, exceeding or exceeded by culm;

blades 0.2–0.3 mm wide, margins strongly involute or channeled, apex trigonous, tapering, setaceous.

clusters 1(–2), if 2 then close together, dense, broadly turbinate to hemispheric;

primary leafy bracts linear, stiff, exceeding clusters.

cluster of cymes 1–2, widely spaced, turbinate, sparse;

branches few; foliaceous bracts setaceous, longer than cymes.

light brown, narrowly lanceoloid, 8–10 mm, apex acuminate;

fertile scales lanceolate, convex, (6–)7–8 mm, apex narrowly acute, low midrib short-excurrent or not.

brown, lanceovoid to fusiform, 2.5–3 mm, apex acuminate;

fertile scales ovate, 1.5 mm, apex acute, midrib shortexcurrent.

perianth bristles 6, excurved, plumose from base to midbristle, 5–7.5 mm, antrorsely barbellate to tip.

perianth absent.

1–2 per spikelet, 2.3–2.6 × 1.1–1.2 mm;

body brown, short-stipitate, tumidly obovoid, subterete, 1.8–2 mm, margin low, broad;

surfaces interruptedly transversely wavy-rugulose;

tubercle broadly and concavely conic, 0.5–0.7 mm high, base shallowly 2-lobed, discoid, abruptly narrowed to blunt tip.

0.9–1 mm;

body lustrous pale brown, ellipsoidlenticular, 0.8–0.9 × 0.5–0.6 mm, margins narrow, wirelike;

surfaces minutely reticulate;

bristles 4–6, the longest from shorter than fruit midbody to fully as long, rarely reaching tubercle tip, minutely antrorsely barbellate;

tubercle shortconic, to 0.15 mm.