Flora of North America species comparison

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

25–80 cm, glabrescent.

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.

sheaths pilose;

ligules as long as or shorter than wide;

blades 1.5–4 mm wide, glabrescent or pilose abaxially and/or proximally.

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.

lateral spikes usually approximate, 7–18 × 3.5–5 mm;

terminal spike gynecandrous, at least 1/2 of flowers pistillate, 12–25 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.

spreading, 7–14-veined, obovate-circular, nearly circular in cross section, 2.1–3 × 1.1–2 mm, not papillose, glabrous or sparsely pilose;

beak absent.

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

1.6–2.2 × 1–1.4 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 ovate, 1.5–2.4(–3) × 0.7–1.5 mm, shorter than perigynia, apex acute to acuminate.

1.5–2.5 mm.

1.4–2.5 mm.

scales oblong-ovate, 2.4–5.1 mm, apex acuminate.

= 48.