Flora of North America species comparison

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

10–30 cm, 0.5–1 mm wide basally, 0.4–0.5 mm wide distally.

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 tight, green, fronts hyaline;

ligules less than 2 mm, wider than long;

widest leaf blades 1–1.7 mm wide.

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.

with 3–8 spikes, 0.6–3 cm × 5–6 mm;

proximal internodes 1–2 times as long as proximal spikes;

proximal bracts to 1(–3) cm;

spikes with 3–10 spreading or reflexed perigynia.

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.

green to pale yellow, faces not veined, 2.6–3.4 × 1–1.3 mm, base of body spongy, thickened, longitudinally striate adaxially, spongy region 0.7–1.1 mm, margins entire, usually serrulate distally;

beak 0.7–1.1 mm, apical teeth 0.1–0.3 mm.

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

ovate, 1.3–1.5 × 1–1.1 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 hyaline or pale brown with green midvein, ovate, 1.8–2.4 × 0.8–1.3 mm, body 2/3 to almost length of perigynia, apex acute, acuminate or short-awned.

1.5–2.5 mm.

1 mm.

straight or slightly twisted, 0.05 mm wide.