Flora of North America species comparison

erect or excurved, linear, leafy, trigonous, slender.

slightly to much exceeded by culm;

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

terminal;

spikelet single, terminal cluster of spikelets crowded, hemispheric, 2.5 cm wide; leafy bracts linearsetaceous, much exceeding cluster.

whitish to tan, narrowly lanceoloid, (3.5–)4–5.5 mm, apex acuminate;

fertile scales lanceolate, 3.5–4(–4.5) mm, apex narrowly acute, minutely awned or apiculate.

bristles vestigial or obsolete.

1 per spikelet, (1.9–)2–2.3 mm;

body brown with pale center, lenticular, broadly ellipsoid, 1.5–2 × 1.5 mm, margins flowing to tubercle;

surfaces longitudinally finely striate;

tubercle depressedtriangular, 0.2–0.3(–0.4) mm.