Flora of North America species comparison

erect, trigonous, multiribbed, rather stiff.

spikelet clusters 1–3, turbinate to hemispheric, 1.5–3 cm wide; subtending leafy bracts mostly exceeded by distal compound.

pale brown to nearly white, fusiform, 4–5(–7) mm, apex narrowly acute;

fertile scales elliptic, 3.5–4 mm, apex narrowly acute, midrib excurrent as mucro.

perianth bristles (15–)18–20, reaching tubercle tip, retrorsely barbellate.

1 per spikelet, 2.5–3.2 mm;

body brown with pale center, obovoid distal to short stipe, lenticular, 1.7–2.2 × 0.8–1.5, margins narrow, wirelike, flowing into tubercle edges;

tubercle flat, narrowly triangular-subulate, 0.8–1 mm.

leaves overtopped by culm;

blades narrowly linear, proximally flat, (1.5–)2–3.5 mm wide, apex tapering, trigonous.