Flora of North America species comparison

20–90 cm, 1.7–2.2 mm wide basally, 0.7–1.1 mm wide distally.

5–40 cm.

sheaths tight, green, sometimes white spotted, fronts hyaline, sometimes transversely rugose, mouth yellowish and thickened;

ligules to 3 mm, usually wider than long;

widest leaf blades 2–4 mm wide, papillose adaxially.

blades 5–15(–25) cm × 1–2.5(–3.5) mm.

with 3–10 spikes, 1.5–4 cm × 8–12 mm;

proximal internodes equaling or shorter than proximal spikes;

proximal bracts less than 2 cm;

spikes with 8–20 ascending or spreading perigynia.

proximal bracts leaflike, exceeding inflorescences, sheaths to 10 mm;

lateral spikes with 9–30 perigynia, approximate or proximal distant, dense, 7–15 × 3–5 mm;

middle internodes 0.3–0.7 mm;

terminal spike usually gynecandrous, with at least 1/3 of flowers staminate, rarely entirely staminate, sessile or short-pedunculate, 6–15(–20) mm, (1.2–)1.5–2.5 mm wide in staminate portion.

pale green to yellow-brown, 9–15-veined abaxially, margins serrulate distally;

beak 0.2–1.2mm, apical teeth 0.2–0.5 mm.

ascending, white, elliptic-obovate, 2–3 × 1.2–1.8 mm, densely papillose.

suborbiculate, 1.9–2.2 × 1.9–2.1 mm.

elliptic-circular, 1.4–2 × 1–1.5 mm.

scales hyaline with green, 3-veined center, ovate to ovate-circular, body narrower than and 2/3 to length of perigynium, apex acute or with awn 0.5–1.5(–2) mm.

scales ascending, medium to dark brown with paler midvein and hyaline margins, ovate-circular, 1.7–2.7 × 1–1.9 mm, apex obtuse to acute, sometimes shortly mucronate.

1.5–2.3 mm.

scales brown with paler midvein and hyaline margins, oblong-ovate, (2–)2.5–3.7 mm, apex obtuse to acute.