Flora of North America species comparison

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

17–75(–90) cm, 2–3.5 mm wide basally, 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 to 2.5 mm, as long as wide;

widest leaf blades 2.2–4.6 mm wide, papillose adaxially.

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 5–14 spikes, 1.4–2.8 cm × 9–14.5 mm;

proximal bracts 0.7–6(–10) cm, shorter than to 2.5(–5) times as long as inflorescences;

spikes with (2–)4–24 ascending to spreading perigynia;

proximal internodes shorter than proximal spikes.

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.

pale green to pale brown, veinless or weakly 1–10-veined on each face, 3.3–5.6 × 1.9–2.8 mm, margins serrulate distally, base of body somewhat spongy, thickened;

beak (1–)1.4–1.8 mm, apical teeth (0.5–)1.4–1.8 mm.

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

suborbiculate, 1.8–2.8 × 1.5–2.2 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 pale brown to greenish hyaline, with green usually 1-veined center, ovate, 1.6–3.1 × 1.4–2.2 mm, body narrower than and 2/3 length of perigynium, apex usually awned, awn to 3.6 mm.

1.5–2.5 mm.

1.3–1.9 mm.