Flora of North America species comparison

erect or ascending, slender, leafy proximal to middle, somewhat stiff.

lax, filiform, leafy.

overtopped by culm;

blades ascending, ± filiform, proximally flat or slightly concave, to 1 mm wide, apex narrowing, trigonous, abruptly 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.

spikelet clusters 1–2, if 2 then close together, dense, broadly turbinate to hemispheric or even globose;

primary leafy bract setaceous, exceeding clusters.

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

branches few; foliaceous bracts setaceous, longer than cymes.

redbrown, ovoid, 2–2.5(–4) mm, apex acute;

fertile scales broadly ovate, 1.5–1.9(–2) mm, apex acute to acuminate, midrib excurrent as awn to 0.5 mm.

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

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

bristles 6, some reaching to apex of fruit body.

perianth absent.

2–3 per spikelet, 1–1.2(–1.4) mm;

body dull dark brown with paler brown center, lenticular, broadly obovoid to broadly ellipsoid, 1 × 0.8 mm, margins narrow, flowing to tubercle;

tubercle nearly equilaterally triangular, 0.2–0.3 mm.

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.