Flora of North America species comparison

to 80 cm × 3–8 mm, scabrous.

8–38 cm;

bases (remnants of old leaves) weakly to strongly fibrous.

sheath fronts not spotted, slightly thickened near hyaline margins, apex convex, membranous, rugose;

ligule retuse or rounded, to 3 mm, free limb to 0.2 mm;

blades 60 cm × 5 mm, shorter than flowering stem.

blades green, 1.5–3.5(–5) mm wide, herbaceous, smooth to scabrous abaxially, smooth to scabrous adaxially.

spicate, 3–7 cm × 15–25 mm, with 10–15 branches, proximal branches not distinctly separate; the proximal internode to 10 mm;

bracts setaceous, usually only the proximal conspicuous.

usually with either staminate or pistillate spikes, occasionally with both;

peduncles of staminate spikes short;

proximal nonbasal bracts leaflike, dark purple to black at base, shorter than inflorescences.

proximal pistillate spikes 1–4 (basal spikes 0–1);

cauline spikes overlapping or somewhat separted, with 4–9 perigynia; staminate spikes 13–24 × (1.4–)2–4.1 mm.

pale brown, body broadly ovate, 3.2–4 × 2–2.6 mm, base rounded or cordate, apex abruptly contracted to beak;

beak 1.3–1.5 mm, 1/3 length of perigynium.

green, occasionally dark purple in age, veinless or 5-veined near base, obovoid, 3.1–3.6 × 1.5–1.8 mm;

beak slightly bent, dark purple, 0.5–1 mm, weakly ciliate-serrulate, apical teeth 0.2 mm.

brown, ovate, 1.5–1.9 × 1.2–1.6 mm, dull.

pale to medium brown, globose, round in cross section, 1.9–2.2 × 1.4–1.8 mm.

hyaline, pale brown, becoming colorless with green midrib, awn usually not longer than the body.

pistillate scales dark purple to black, with narrow white margins, lanceolate, 3.8–4.6 × 1.3–1.8 mm, apex acuminate; staminate scales oblanceolate, 4.6–5.6 × 1.1–1.6 mm, apex acute;

proximal staminate scales with narrow white margins 0.1–0.2 mm wide.

2.1–4 mm.

3.