Flora of North America species comparison

10–90(–135) cm.

20–50 cm, smooth.

3–6 per culm;

sheaths tight, inner band hyaline, 1.8–2.5 cm, apex concave, glabrous;

ligules 0.6–2.5(–4.5) mm, rounded to ± acute;

blades plicate, 5–40 cm × 0.7–3.3(–3.8) mm, widest leaf 1–3.3(–3.8) mm wide.

2.5–5 mm wide.

0.7–7.8 cm;

spikes (2–)3–8;

lateral spikes pistillate often with few staminate flowers proximally, 3–15.5 mm, sessile, staminate portion 7-flowered, to 8.2 mm, pistillate portion 3–32-flowered, 2.5–11 mm;

basal 2 spikes 1.7–42 mm apart;

terminal spike gynecandrous, 5–24 mm, staminate portion 2–17-flowered, 2–16.5 × 0.9–2 mm, pistillate portion 4–26-flowered, 2.6–9 × 4.9–9.1 mm.

proximal bracts shorter than or exceeding inflorescences;

spikes contiguous, overlapping, distinct or the proximal separate and pendent, elongate, 10–25 × 6–10 mm;

proximal long-pendunculate;

lateral 3–6 spikes pistillate or, rarely, gynecandrous;

terminal spike gynecandrous.

spreading to reflexed, castaneous to dark brown, 2–14-veined abaxially, 0–12-veined adaxially over achene, lanceolate to ovate, (2.65–)2.9–4.75 × 0.8–2.1 mm, (1.7–)1.8–3.2(–3.6) times as long as wide;

beak (0.85–)0.95–2 mm, (0.4–)0.45–0.86 length of body, serrulate, teeth (0–)0.15–0.5 mm.

ascending, purple-brown with green or pale yellow margins, veinless, broadly ovate, 3–4 × 2.25–3.5 mm, apex abruptly beaked, distally papillose;

beak 0.3–0.5 mm, entire or shallowly bidentate, smooth.

scales ovate, (1.4–)2.1–3.1 × 0.7–2.3 mm, apex acute to sometimes obtuse.

scales chestnut or brownish black with hyaline margins, lanceolate, equaling or longer than and narrower than perigynia, midvein same color as body, inconspicuous, slightly raised, prominent.

scales ovate-lanceolate to ovate, 1.3–3.8 × 0.8–1.7 mm, base clavate, apex acute.

0.8–1.6(–2) mm.

ovate-lanceolate to rhombic-ovate, 1.3–2.1 × 0.8–1.55 mm.

filling proximal 1/2 or less of perigynium.

= 58.