Flora of North America species comparison

lax, filiform, leafy.

erect or arching, leafy toward base, filiform, terete, wiry.

spreading to ascending, exceeding or exceeded by culm;

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

overtopped by culm;

blades linear to filiform, channeled, 0.3–0.5 mm wide, margins deeply involute, apex setaceous.

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

branches few; foliaceous bracts setaceous, longer than cymes.

spikelet clusters 1–2(–3), dense to open, narrowly to broadly turbinate;

branches capillary, variously elongate; leafy bracts setaceous, equaling or exceeding clusters.

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

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

variously brown, ellipsoid, 2–3 mm, apex sharply acute;

fertile scales ovate to nearly orbiculate, rounded, 1.2–1.8 mm, apiculate, convexcupulate, midrib slender, mostly included.

perianth absent.

perianth absent.

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.

2–3 per spikelet, 0.7–0.9(–1) mm;

body pale, obovoid-lenticular, (0.5–)0.6–0.9 × 0.4–0.5 mm, margin wirelike;

surfaces transversely rugulose;

tubercle buttonlike, depressed triangular, 0.05–0.1 mm, base lunate atop rounded fruit body.