Flora of North America species comparison

densely branching.

usually tuberous, 2–4 mm diam.

few–20.

erect, terete, 1–3 mm diam., smooth.

0–1.

basal, (1–)2–3;

auricles 2–5 mm, apex acute, membranous;

blade flat, 3–12 cm × 0.5–1 mm, margins entire.

basal 1–2, cauline 2–3, green;

auricles 1–2 mm, apex rounded, membranaceous;

blade terete, 2–23 cm × 1–2 mm, distal cauline leaf blade 1.6–26 cm, equaling or longer than sheath.

5–40-flowered, borne congested or branch internodes ca. as long as tepals, ssomewhat loose, 1–5 cm;

primary bract usually longer than inflorescence.

terminal panicles of 1–23(–32) heads, 2.5–9 cm, branches ascending to erect;

primary bracts erect;

heads 20–60-flowered, spheric or usually lobed, 6–11 mm diam.

bracteoles 2;

tepals greenish, lanceolate, 3.3–4.4 mm;

outer and inner series nearly equal;

stamens 6, filaments 0.5–0.9 mm, anthers 0.1–0.2 mm;

style 0.1–0.2 mm.

tepals green to straw-colored, lance-subulate, 2–3.5 mm, nearly equal, apex acuminate;

stamens 3, anthers 1/3 filament length.

tan or light brown, 1-locular to pseudo-3-locular, ellipsoid, (3.3–)3.8–4.7 × (1.1–)1.3–1.7 mm, nearly equal to tepals.

exserted, straw-colored, 1-locular, lance-subulate, 3–4 mm, apex tapering, remaining attached at tip, valves not separating at dehiscence, fertile throughout or only proximal to middle.

tan, ellipsoid to lunate, (0.52–)5.5–0.65(–0.7) mm, not tailed.

oblong, 0.4 mm, not tailed;

body clear yellow-brown.

= 80.