Flora of North America species comparison

0.2–10 cm, 0.6–1.2 mm in diam.

erect, not stiff, 15–90 cm.

arising singly or in loose tufts of 2–6(–12), 10–40(–60) cm, apically slightly 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.

proximal 1–4 reduced to bladeless or nearly bladeless sheaths;

foliage leaves 1–2(–3) per culm;

ligules about as wide as long;

blades mostly 1–3 (proximal blade) or 5–13 (distal) cm × 0.5–1.6 mm.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually 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.

consisting of slender terminal cone of (1–)2–4 staminate flowers and (1–)2–6(–7) pistillate flowers, 3–10 (often 5–8) × 2–8 (immature fruit) or to 17 (mature fruit) 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.

light green, becoming straw colored or pale brown, lance-subulate to narrowly elongate-oblong, (5–)5.9–7.8 × 0.7–1.1 mm, long-tapering;

beak indistinct;

rachilla vestigial.

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

2–2.4 × 0.8–1 mm;

style exserted 0.2–1.3 mm beyond orifice of beak.

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 3.7–5.9 mm, wider than and 2/3 length of perigynia.

scales closely appressed.

= 56.

= ca. 74, 76.