Flora of North America species comparison

acutely angled, 50–150 cm, scabrous.

(16–)30–70(–95) cm.

basal sheaths red-brown;

sheaths of proximal leaves bladeless, scabrous, fronts with red-brown spots, prominently ladder-fibrillose, apex red-brown, U-shaped, occasionally thickened;

blades 4–6 mm wide.

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.

proximal bract shorter than or subequal to inflorescence, 3–4.5 mm wide.

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.

erect; staminate 2(–3); pistillate 3–4;

proximal pistillate spike 1.6–10.8 cm × 3–5 mm, 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.

ascending, pale brown, occasionally with red-brown spots on apical 1/2, 0–5-veined on each face, somewhat flattened, loosely enclosing achenes, ovoid, 1.7–3.4 × 0.8–1.8 mm, dull, apex acute or obtuse, papillose;

beak thickened, 0.1–0.2 mm.

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.

not constricted, dull.

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

scales red-brown, shorter than perigynia, apex acute, awnless.

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.

= 66, 68.

= 76, 78.