Flora of North America species comparison

erect, slender, 10–15(–30) cm, rough distally.

erect, not stiff, 15–90 cm.

sheaths pale brown abaxially, persisting, inner band thin, hyaline, sometimes red tinged, truncate or shallowly concave at summit;

ligules shorter than wide;

blades pale green to gray-green, flat or slightly involute, 5–10 cm × 1–2 mm, shorter than culms.

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.

0.7–1.5 cm × 4–7 mm;

proximal bracts scalelike, occasionally bristlelike, shorter than spikes.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

2–3(–4), lateral spikes gynecandrous, closely approximate or the proximal slightly separate, individually distinct, containing 3–8 perigynia, oblong-clavate, 3–6 × 3–5 mm;

terminal spike not clavate.

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.

appressed-ascending, green-white proximally, pale brown distally, often brown in age, finely several-veined, elliptic, 2–3 × 1.25–1.5 mm, widest near middle, apex conic with weakly convex, usually entire margin, subcoriaceous;

beak indistinct.

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.

red-brown, broadly obovate, 1.25–1.5 × 1 mm, dull to slightly glossy.

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

scales red-brown with lighter center and broad white-hyaline margins oblong-ovate, subequal to perigynia, apex obtuse.

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.

= 62, 64.

= 56.