Flora of North America species comparison

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

sharply angled, at least 1 angle serrulate distally, 10–35 cm.

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.

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 pistillate heads 2.5–5 cm wide;

proximal spikes ascending-spreading to spreading.

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.

ascending to ascending-spreading, sometimes spreading, with deeply erose wings 0.7–1.7 mm wide, base cordate;

beak ± straight, 6.5–9 mm from apex to achene, apex notched 0.7–1.5 mm adaxially.

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

3–4.5 × 2.3–3 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 reddish to brown with green or gold center, sometimes with distal margins white or pale gold, 0.1–0.3(–0.5) mm wide, apex short-tapered with awn to 1.2–4 mm.

1.5–2.5 mm.

2.5–5 mm.

= 74, 78.