Flora of North America species comparison

tuberous, 3–4 mm diam.

1–8, 0.3–0.5 mm diam.

erect, terete, 2–3 mm diam., smooth.

1–2.

0(–1), straw-colored, apex acute.

basal, 2–4;

auricles slightly prolonged, rounded, scarious to ± leathery;

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

basal 1–2, cauline 2–4, auricles 0.5–3.5 mm, apex rounded, scarious;

blade green to straw-colored, terete, 3–50 cm × 1–2 mm diam.

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

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

terminal panicles of 2–10(–20) heads or a single head, 1–4(–10) cm, branches ascending;

primary bract erect;

heads 30–100-flowered, spheric, 8–10 mm diam.

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 green to straw-colored, often red-tinted, lanceolate-subulate, apex acuminate;

outer tepals 2.5–3.8 mm;

inner tepals 2–3.2 mm;

stamens 3, anthers 1/4–1/2 filament length.

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

included, chestnut brown, 1-locular, obconic or ovoid, 1.8–2.7 mm, apex obtuse, valves separating at dehiscence, fertile throughout or only proximal to middle.

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

ellipsoid to oblique-oblong, 0.3–0.4 mm, not tailed;

cody clear to yellow-brown.

= 44.