Flora of North America species comparison

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

13–40 cm, smooth, sparsely pilose.

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 M-shaped in cross section when young, 2–4.5 mm wide, at least proximal pilose.

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 sheathless or sheath not more than 2 mm;

lateral spikes 6–27 × 4–9 mm, all in distal 1/2 of stem;

terminal spike 8–20 × 1–2.5 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.

20–30-veined, narrowly ovoid, 4.5–6 × 1.4–2 mm, spongy at base, subglabrous to puberulent proximally, pilose distally, at least some hairs 0.3–0.4 mm;

beak obscure, 0.3–0.5 mm.

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

stipe to 1 mm;

bodies 2.5 × 1.3–1.7 mm, filling only distal part of perigynia.

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 3-veined, ovate, 2.3–3 × 1.3–2.2 mm, shorter than perigynia, apex acute, sometimes with awn to 0.7 mm.

1.5–2.5 mm.

scales 3-veined, 3.2–5 × 1.2–2 mm.