Flora of North America species comparison

erect, not stiff, 15–90 cm.

erect, 20–75 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.

4–10;

basal sheaths reddish to brownish;

sheath of the distal leaf 2–10 cm;

ligules rounded to triangular, 2–7 mm;

blades 10–40 cm × 2–6 mm.

2–15 cm × 5–10 mm;

proximal bracts shorter than to exceeding spikes;

distal bracts usually scalelike.

10–42 cm;

peduncles of proximal spikes 0.5–10.5 cm, basal 2 peduncles 2–10 cm apart; of terminal spike (3–)6–18 cm, exceeding the distal pistillate spike by 2–12 cm;

bracts leafy, sheaths 0.5–5 cm;

blades 10–30 cm × 2–4 mm.

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 1–3(–4), separate, 10–30-flowered, ovoid, 1.5–4.5 cm × 1.5–3 cm;

terminal staminate spike 1, 0.5–7 cm × 2–3 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.

narrowly ovoid, 10–14 × 3.5–6 mm, shiny, glabrous;

beak conic, 4.5–7 mm.

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

broadly stipitate, rhomboid, flat faces, angles thickened, 2.5–3.5 × 1.7–2 mm;

style same texture as achene.

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-veined, lanceolate-ovate, 4.5–6.5 × 1.5–2 mm.

3, 3–4.5 mm.

= 56.