Flora of North America species comparison

erect, not stiff, 15–90 cm.

erect, stiff, 20–50 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 pale brown abaxially, inner band hyaline, conspicuously red tinged, concave at summit;

ligules as long as broad;

blades pale to bluish green or gray-green, flat, 10–25 cm × 2–3 mm, shorter than culms, thin.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

2–4(–6) cm × 5–10 mm;

proximal bracts prolonged, subequal to spikes, distal bracts scalelike.

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.

5–8, gynecandrous, proximal 2 or 3 spikes 1 cm or less apart, distal approximate, containing 10–20 perigynia, oblong, 5–14 × 3–5 mm;

terminal spikes staminate for less than 1/2 length, scarcely clavate.

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, pale brown or brown, several-veined, elliptic-obovate, 1.5–2 × 1 mm, widest near middle, membranous;

beak short, entire.

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

yellow-brown, elliptic, 1–1.25 × 0.8 mm, dull to slightly glossy.

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 brown with pale green center and narrow hyaline margins, broadly ovate, much shorter than perigynia, apex obtuse.

= 56.

= 60 (Chukotka Peninsula).