Flora of North America species comparison

poorly developed.

1–8, 0.3–0.5 mm diam.

erect, compressed, bases often swollen.

1–2.

basal, 2–4;

auricles slightly prolonged, rounded, scarious to ± leathery;

blade deeply channeled, 2–10 cm, mostly shorter than culms.

basal 2–4, cauline 1–3;

auricles 0.5–1 mm, apex rounded to nearly acute;

blade flat, 3–15 cm × 1–2.5 mm.

solitary heads, each with 2–3(–50) flowers;

primary bracts brownish, nearly equal to or slightly shorter thanabout equaling inflorescence.

glomerules, (1–)2–5(–10), each with (3–)6–15 flowers, open;

primary bract shorter than inflorescence.

tepals pale brown or darker, oblong-lanceolate, 3–5 mm, outer and inner series nearly equal;

stamens 6, filaments 2.5–4 mm, anthers 0.6–1 mm;

styles 0.5–0.8 mm.

tepals straw-colored with green midstripe, lanceolate or widely so, 3.5–5 mm, margins sometimes clear;

outer and inner series nearly equal;

stamens 3, filaments 1.5 mm, anthers 0.5 mm;

style 0.5 mm.

tan, pseudo-3-locular, 3-gonous–cylindric, apex obtuse, mucronate.

tan to reddish brown, 3-locular, obovoid, 2.6–3.2 mm, shorter than perianth.

tan or darker, fusiform, body 0.5–1 mm, tails 0.6–1 mm.

fusiform, 0.5–0.6 mm, not tailed.