Flora of North America species comparison

erect, not stiff, 15–90 cm.

straight, 10–50 cm, tallest ones 25–50 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.

of flowering stems usually shorter than culms, 5–20 cm × 1.5–2.9 mm;

ligules on distal cauline leaves truncate or rounded.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

peduncles of terminal staminate spikes 0.5–8 mm, 0.2–0.5 length of staminate spikes;

bracts to 20 cm × 1.1–2.9 mm, 1.5–4 times as long as inflorescences;

inner band of sheaths concave or truncate.

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.

proximal pistillate spikes (1–)2–5, approximate, subsessile or short-pedunculate, globose to elliptic, 8.5–19.9 × 4.1–9.8 mm;

terminal staminate spikes pedunculate, 12–21 × 1.3–2.7 mm.

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.

reflexed, yellowish green, 3.5–4.8 × 1.1–1.7 mm, apex gradually narrowed;

beak 1.4–2.5 mm, forming an angle of 13–48° with body, smooth.

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

1.2–1.5 × 1–1.2 mm.

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.

pistillate scales yellowish green, inconspicuous among perigynia, 1.7–2.6 × 0.8–1.2 mm;

staminate scales yellowish green, ovate, 2.9–4.4 × 0.8–1.6 mm, apex obtuse or acute to acuminate.

1.1–2.9 mm.

= 56.

= 64.