Flora of North America species comparison

(1–30), sparingly branched at midstem or distally (lateral branches often short, minutely bracteate or naked), glabrous.

usually all basal;

blades oblanceolate to oblong, 20–110 × 5–30 mm, margins nearly entire to dentate or pinnatifid, faces usually glabrous or glabrate, sometimes hirsute on veins.

narrowly campanulate, 8–16 × (3–)5–20 mm.

20–40;

corollas white to yellowish, 5–8 mm, ± equaling phyllaries at flowering.

18–20, lanceolate, 3–18 mm, unequal, margins scarious, faces glabrous (apices brownish or reddish, sometimes ciliate).

borne singly or 2–3 in loose, cymiform arrays (terminating branches, not showy).

dimorphic, outer cylindric, stout, truncate, inner fusiform, slender, beaked;

bodies dark brown, 10-nerved, 8–10 mm, beaks 3–4 mm;

pappi of tawny bristles in 2 series, outer barbellate, shorter than plumose inner, longest 9–10 mm.

= 8, 10, 12.