Flora of North America species comparison

(forming clumps) simple or branched among heads.

simple (sparsely to moderately hairy, hairs translucent with purple septa).

(2–)3(–4) pairs, mostly cauline (basal sometimes present); petiolate (petioles relatively short, broad-winged) or subsessile;

blades broadly elliptic, lance-elliptic, or narrowly to broadly lanceolate, 4–20 × 1–4 cm, margins entire or irregularly denticulate, apices acute, faces sparsely to moderately hairy (hairs relatively short to long, stipitate glands or soft, silky).

2–5 pairs, mostly cauline; petiolate (proximal) or sessile;

blades elliptic-oblanceolate, obovate or spatulate, (3–)5–12 × 1.5–3 cm, margins usually entire proximal to mid blade, serrate to dentate distally, apices acute to obtuse or abruptly pointed, faces usually glabrate, sometimes scabrous to sparsely stipitate-glandular.

hemispheric to campanulate.

hemispheric or turbinate-hemispheric (bases moderately villous).

10–22;

corollas yellow.

6–17;

corollas yellow (laminae 12–17 mm).

corollas yellow;

anthers yellow.

corollas yellow;

anthers dark purple.

10–22, usually broadly lanceolate, rarely narrowly lanceolate or oblanceolate.

14–24, lanceolate (apices obtuse, tips blunt, callous).

1 or 3–7.

1 (erect).

grayish brown to black, 4–8 mm, mostly stipitate-glandular, sparsely hirsutulous (hairs white to brownish, simple or bifid);

pappi tawny, bristles plumose (with deep, amberlike deposits).

brown, 4–5 mm, shortly hispidulous (hairs duplex, apically forked) and stipitate-glandular;

pappi tawny, bristles subplumose.

= 38, 57, 76, 95, 114, 133, 152.

= 38.