Flora of North America species comparison

(20–)30–100 cm, 2.5–8 mm wide basally, 0.7–1.6 mm wide distally.

15–80 cm, 1.5–2 mm wide basally, 0.5 mm wide distally.

sheaths usually loose, proximally green-and-white-striped, not white spotted, with conspicuous transverse veins on back, fronts hyaline, sometimes transversely rugose and red dotted, thin, white or hyaline and fragile at mouth;

ligules 2–7 mm, shorter to longer than wide;

widest leaf blades (3–)4–8 mm wide.

sheaths tight, green, fronts white-hyaline;

ligules less than 2 mm, wider than long;

widest leaf blades 1.5–2.5 mm wide.

with 5–15 spikes, 1–5 cm × 8–15 mm, occasionally compound, then somewhat larger;

proximal bracts to 3 cm;

spikes with 5–15 ascending to spreading perigynia;

proximal internodes shorter than to 1.5 times as long as proximal spikes.

with 5–10 spikes, 2–5 cm × 5–10 mm;

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

proximal bracts 1–2 cm;

spikes with 5–10 erect perigynia.

pale green to pale brown, veinless or 3–7(–12)-veined abaxially, rarely veined adaxially, 3.5–5.5 × 2–3 mm, body somewhat spongy, base thickened, margins serrulate distally;

beak 0.6–1.6 mm, apical teeth 0.3–1 mm.

pale green to pale brown, veinless or obscurely veined abaxially, 2.6–3.5 × 1.2–1.5 mm, margins serrulate distally;

beak 0.8–1.5 mm, apical teeth 0.3–0.5 mm.

circular to elliptic- circular, 1.8–2.1 × 1.6–2 mm.

elliptic-circular, 1.5–1.7 × 1.1–1.2 mm.

scales hyaline or brown with green, 1–3-veined center, ovate, 2.6–4.4 × 1.3–2.4 mm, body shorter to slightly longer than perigynium, apex acuminate to short-awned.

scales brown with green midvein, ovate, 2.7–3.6 × 1.4–2.1 mm, body longer and wider than perigynium, apex awned.

1.5–3 mm.

not measured.