Flora of North America species comparison

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

to 125 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.

sheaths glaucous, fronts indistinctly veined, veins not persisting, apex thin, concave;

blades 120 cm × 10 mm, glabrous or sparsely scabrous on margins and abaxial surface.

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 5–7 spikes, 30 cm;

peduncle of terminal spike to 3.5–6 cm;

proximal bracts equaling or exceeding inflorescence, 3–5 mm wide;

lateral spikes erect, 2–6 cm × 7 mm;

terminal staminate spikelets usually absent.

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, red-brown or whitish, angles veined, faces inconspicuously 3–8-veined, stipitate, widely elliptic or obovate, 3.2–4 × 2.5–3 mm, base rounded, apex obtuse to somewhat tapered, densely papillose with rounded white papillae, sometimes strongly glaucous;

stipe to 0.2 mm;

beak to 0.2 mm, entire.

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

rhomboid, 2.5–2.7 × 2.5–2.7 mm, base not conspicuously broadened.

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 shorter and narrower than perigynia, apex retuse, awn to 2 mm.

1.5–2.5 mm.