Flora of North America species comparison

long- creeping.

3–4 diam.

erect, 1–3 mm diam.

erect, terete, 3–4 mm diam., smooth.

several.

1–2, purple, apex acute.

blade usually absent (present in var. mexicanus).

basal 0–1, cauline 2–3;

auricles 0.5–2 mm, apex acute, membranaceous;

blade terete, 0–24 cm × 0.5–1.7 mm, most distal cauline leaf blade 0–2 cm, shorter than sheath.

lateral, 3–many-flowered, loose to congested;

primary bract barely exceeding to many times longer than inflorescence.

panicles of (1–)3–21 heads, 1–8 cm, branches erect to spreading;

primary bract erect;

heads 40–60-flowered, spheric, 8–12 mm diam.

variously pedicellate;

bracteoles membranous;

tepals chestnut brown or paler, lanceolate, (2.5–)3.3–5.5(–6) mm, margins clear;

inner series loosely subtending capsule at maturity; usually slightly shorter, margins scarious to clear, apex acutish to obtuse;

stamens 6, filaments 0.2–1.1 mm, anthers 0.9–2.2 mm;

style 0.9–1.5 mm.

tepals straw-colored to reddish brown, lanceolate-subulate;

outer tepals 2.9–4.1 mm, apex acuminate;

inner tepals 2.2–3.7 mm, apex acuminate;

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

3-locular or infrequently pseudo-3-locular, oblate to narrowly ovoid, 3.5–4(–4.5) mm, equal to or exceeding perianth.

exserted, , straw-colorerd, 1-locular, subulate, 2.5–4.2 mm, apex tapering to subulate beak, valves not separat ing at dehiscence, fertile throughout or only proximal to middle.

dark amber, oblate to ellipsoid, 0.6–0.8 mm.

ellipsoid to ovoid, 0.4 mm, not tailed;

body clear yellow-brown.