Flora of North America species comparison

curved, bluntly trigonous, 2–12 cm, smooth-angled distally.

to 80 cm × 2 mm, scabrous throughout.

basal sheaths brown;

ligules 0.3–0.6 mm;

blades involute, ± equaling culms, 0.5–1.5 mm wide.

sheaths all with blades, fronts smooth, lacking spots, veinless, apex yellow, thickened, truncate, cartilaginous, entire;

ligules acute, 5 mm, free limb to 0.5 mm;

blades yellow-green, epistomic, to 60 cm × 6 mm, papillose adaxially (25X).

0.5–1.2 cm;

spikes (3–)5–7, essentially indistinguishable in dense hemispheric head.

densely spicate, cylindric, elongate, with 6–15 distinguishable branches, 3–6 × 1.5 cm;

proximal internode to 10 mm;

proximal bracts setaceous, apparent.

light brown proximally, dark brown distally, usually strongly 8–11-veined abaxially, 4–11-veined adaxially, not or little inflated, narrowly elliptic, 2.9–3.9 × 1–1.5(–1.6) mm, leathery, dull to satiny;

stipe 0.2–0.4 mm;

beak poorly defined, 0.4–0.9 mm, smooth or slightly scabrous-margined.

pale brown, red-brown distally, with red-brown veins, 10–12-veined abaxially, 7-veined adaxially, to 6 × 2.6 mm, base slightly distended proximally, cordate;

stipe to 0.2 mm;

beak to 2.5 mm, margins serrulate.

ovate, 2 × 1.3 mm;

stalk to 0.3 mm;

persistent style base cylindric, 0.3 mm.

scales brown to dark brown, with narrow whitish hyaline margins, ovate, conspicuously shorter than perigynia, apex ± acute to acuminate, body shiny.

0.9–1.4 mm.

hyaline.

= 46.