Flora of North America species comparison

erect, not stiff, 15–90 cm.

20–35 cm, distally scabrous.

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.

blades 2–3 mm wide.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

proximal bracts shorter than inflorescences;

spikes erect, distinct, short-pendunculate, oblong, 10–15 × 5–8 mm;

lateral 2–3 spikes pistillate, of similar length;

terminal spike staminate, androgynous, or gynecandrous.

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, 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.

ascending, pale green, veined or veinless, elliptic, 2.5–3 × 1.25–1.75 mm, papillose, especially along distal margins;

beak to 0.2 mm, bidentate.

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

nearly filling body of perigynia.

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 dark brown, lanceolate, mostly shorter than, also equaling or longer (if longer then without long mucro typical of C. buxbaumii) and as broad as perigynia, midvein lighter colored than body, conspicuous apex acuminate or mucronate, mucro less than 0.5 mm.

= 56.

= 106.