Flora of North America species comparison

widely creeping, sparingly branched, 1.5–2 mm diam., nodes closely set.

not tuberous, 2 mm diam.

terete, 1 mm diam.

erect, terete, 3–5 mm diam., smooth.

several.

0.

blade absent.

basal 2–3(–6), cauline 1–4;

auricles 1–3 mm, apex acute, membranaceous, absent on proximal leaves;

blade green, laterally compressed, 9–70 cm × 2–6 mm.

3–10(–12)-flowered, loosely congested, 1–2 cm;

primary bract terete, nearly equaling to much longer than culm.

terminal panicles of 10–30 heads, 10–30 cm, branches spreading;

primary bract erect;

heads 20–30-flowered, spheric, (10–)12–15 mm diam.

pedicellate;

bracteoles broadly ovate, tepals light brown or green, lanceolate, 2.5–4.2 mm;

inner series loosely subtending capsule at maturity, slightly shorter, margins scarious;

stamens 6, filaments 0.5–0.9 mm, anthers 0.5–0.7 mm;

style 0.2 mm.

tepals green to reddish, lance-subulate, 4–5 mm, apex acuminate;

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

tan, 3-locular, nearly globose, 2.5–3 × 1.8–2.1 mm, shorter than perianth.

exserted, straw-colored, 1-locular, subulate, 4–5,5 mm, tapering to subulate tip, valves separating or not at dehiscence;

fertile throughout or only proximal to middle..

amber, 0.5–0.6 mm, not tailed.

broadly ellipsoid, 0.5–0.6 mm, not tailed;

body clear yellow-brown.

= 40, 70, 80, 84.