Flora of North America species comparison

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

15–55 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.

mostly basal;

basal sheaths pale to dark brown;

blades of flowering stems yellowish green, flat, shorter than stems, widest blades 3–4.6 mm wide, margins scabrous.

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.

longer peduncle of terminal spike 1–2(–4) cm;

proximal bract mostly equaling or no more than 1.5 times as long as inflorescence; pistillate spikes (2–)3–5, ascending, ovoid to short-cylindric;

distal 1 or 2 pistillate spikes aggregated near staminate spike; the proximal widely separated, pedunculate;

terminal staminate spike 8–25(–30) × 2 mm.

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.

yellowish green, 2.6–3.5 × 1–1.3 mm, apex gradually tapered;

beak 0.4–0.7 mm, smooth.

circular to elliptic-circular, 1.8–2.1 × 1.6–1.8 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 brown to reddish brown, with green or whitish midrib.

1.5–2.5 mm.

1.5–2.7 mm.

scales brown, ovate-elliptic, margins scarious, apex obtuse or mucronate.