Flora of North America species comparison

erect, not stiff, 15–90 cm.

14–30 cm.

sheaths pale brown abaxially, inner band thin, hyaline, sometimes slightly red tinged, concave at summit;

ligules slightly longer than wide;

blades pale green to gray-green flat, 10–20(–30) cm × (1.5–)2–4 mm, subequal to shorter than culms, not stiff.

sheaths adaxially white-hyaline, summits U-shaped;

distal ligules (1–)2–2.5 mm;

blades 2–5(–8) per fertile culm, usually folded, 10.5–15 × 1–2.5 mm.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

dense or ± open, gold to brown, 1.4–3 cm × 5–11 mm;

proximal internode (2.5–)3.5–6 mm; 2d internode 0.8–3.5 mm;

proximal bracts usually bristlelike, shorter than inflorescences.

4–8, gynecandrous, proximal ± remote, distal spikes approximate, sometimes flexuous, containing (5–)10–20(–30) perigynia suborbicular to oblong, 3–12 × 3–5 mm;

terminal spike staminate for less than 1/2 of length, often clavate due to more conspicuous staminate part.

4–9, aggregated or distant, individually indistinct or distinct, lanceloid to ovoid, 5–11 × 2.5–6 mm, base and apex acute to attenuate.

appressed-ascending, gray-green, becoming yellowish brown, obscurely many-veined, elliptic-ovate, 1.8–3 × 1.2–1.7 mm, widest near middle, membranous;

beak abaxial suture inconspicuous, small marginal teeth.

appressed-ascending to ascending, gold or whitish, boat-shaped with wings adaxially incurved, conspicuously (0–)5–10-veined abaxially, conspicuously 0–6-veined adaxially, lanceolate or occasionally ovate, plano-convex, 3.5–4.2 × 1–1.2 mm, 0.4–0.5(–0.6) mm thick, margin flat, including wing 0.05–0.2 mm wide, ciliate-serrulate at least on distal body;

beak gold to reddish or brown, white-hyaline at tip, cylindric, unwinged, entire for 0.3–0.6 mm, abaxial suture with conspicuous white margin, distance from beak tip to achene 1.5–2.2 mm, beak tip conspicuous in inflorescences.

pale brown, oblong-obovate, 1.25–1.5 × 1–1.25 mm, dull to slightly glossy.

ovate to obovate, 1.4–1.8 × 0.7–0.95 mm, 0.35–0.4 mm thick.

scales hyaline with green, 3-veined center when young, usually brownish tinged in age, broadly ovate, subequal to, not concealing perigynia, apex obtuse to acutish.

scales gold to red-brown, often with whitish or green to gold midstripe or white tip, ovate to broadly ovate, (3–)3.5–5 mm, usually longer and wider than perignyium bodies, margin white, 0.1–0.3 mm wide, apex obtuse to acuminate.

= 56.