Flora of North America species comparison

(20–)30–100 cm, 1.5–3.5 mm wide basally, 0.7–1.2 mm wide distally.

5–40 cm.

sheaths usually loose, proximal green-and-white-striped and green-and-white-mottled, with conspicous transverse veins on back, fronts white to hyaline, sometimes red dotted and transversely rugose, yellow or brown and thickened at mouth;

ligules 1–4.5 mm, shorter than to as long as wide;

widest leaf blades 3.5–5 mm wide.

blades 5–15(–25) cm × 1–2.5(–3.5) mm.

with 5–10 spikes, (1.5–)2–5 cm × 8–13 mm;

proximal internodes shorter than to as long as proximal spikes;

proximal bracts to 3 cm;

spikes with 5–15 ascending to 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 pale brown, veinless or weakly 2–5-veined abaxially, 3.4–4.6 × 1.9–2.8 mm, body somewhat spongy, thickened at base, margins serrulate distally;

beak 0.7–1.4 mm, apical teeth 0.3–1 mm.

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

circular to elliptic-circular, 1.8–2.1 × 1.6–1.8 mm.

elliptic-circular, 1.4–2 × 1–1.5 mm.

scales hyaline or pale brown with green, 1–3-veined center, ovate, 2.2–3.5 × 1.2–1.8 mm, body 2/3 as long to almost length of perigynia, apex acuminate to short-awned.

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.

1.5–2.5 mm.

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