Flora of North America species comparison

acutely angled, 40–150 cm, scabrous.

(16–)30–70(–95) cm.

basal sheaths red-brown or brown;

sheaths of proximal leaves bladeless, glabrous, fronts red-brown to copper-brown, spots absent, indistinctly ladder-fibrillose, apex U-shaped;

blades hypostomic, abaxially papillose.

sheath adaxially white-hyaline or summits often tinged brown or copper, U-shaped, not prolonged more than 2.8 mm;

distal ligules 1–2.5(–3.5) mm;

blades (2–)3–5 per fertile culm, 10–30 cm × (1.5–)2–3(–4) mm.

usually open, often nodding, whitish, green, or gold to dark brown, occasionally beaded, (1.7–)2.5–5 cm × 10–15(–17) mm;

proximal internode 4–14 mm; 2d internode (2.5–)4–10 mm;

proximal bracts scalelike to bristlelike, shorter than inflorescences.

usually pendent; staminate 1–3, base cuneate or attenuate.

4–10, distant, distinct, oblanceloid to broadly ovoid, 8.5–20 × 3–9 mm, base acute to attenuate, apex tapered to truncate.

divergent, pale brown, inflated, loosely enclosing achenes, obovoid, dull, apex rounded, obtuse or truncate, glabrous.

appressed to ascending-spreading, often hyaline, white, green, or gold, brown or coppery over achene, conspicuously (0–)4–11-veined abaxially, conspicuously 0–4(–7)-veined adaxially, ovate or, sometimes, lanceolate, plano-convex or flat, (3.7–)4.5–6 × 1.2–2 mm, 0.5–0.8 mm thick, length 2.8–3.1 times width, margin flat, including wing (0.1–)0.2–0.4(–0.5) mm wide, ciliate-serrulate, without glossy metallic sheen;

beak green or gold to red-brown or chestnut-brown, white-hyaline at tip, cylindric, unwinged, ± entire for 0.4–1 mm, abaxial suture conspicuous with white-hyaline margin or inconspicuous, distance from beak tip to achene (1.6–)1.9–3 mm.

constricted on one or both margins or lacking constrictions;

style base straight.

ovate or obovate, 1.4–2.1(–2.7) × (0.8–)1–1.5 mm, 0.4–0.6 mm thick.

bract longer than inflorescence, 3–6 mm wide.

scales pale to copper-brown, midvein reaching apex, broad, apex of body retuse, aristate.

scales white, gold, coppery, or brown, with white or green to brown midstripe, lanceolate to broadly ovate, (3.4–)4.2–5.8 mm, equaling or longer than and narrower than or equaling perigynia, margin white, 0.1–0.3 mm wide, apex obtuse to acuminate.

early deciduous ro short-persistent.

= 76, 78.