Flora of North America species comparison

10–90(–135) cm.

20–60 cm, distally scabrous.

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.

2–4 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 equaling or exceeding inflorescences;

spikes separate, short-oblong or elongate, 10–30 × 5–10 mm;

proximal spikes sometimes spreading, long-pendunculate;

distal spikes erect, short-pendunculate;

lateral 2–4 spikes pistillate, contiguous, of similar length;

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, brown, vein, elliptic, 3.5–5 × 2–3 mm, apex gradually or abruptly beaked, smooth;

beak 0.2–0.3 mm, truncate or obscurely bidentate, smooth.

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

nearly filling body of perigynia.

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

scales dark brown or black to margins, lanceolate, slightly shorter, equaling, or exceeding and as broad as perigynia, midvein lighter colored than body, conspicuous, raised, prominent, mucronate.

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

0.8–1.6(–2) mm.

= 58.

= ca. 62.