Flora of North America species comparison

1, erect (often reddish), stout (fistulose), simple or branched proximally, coarsely setose or hispid (at least distally, setae yellowish).

1–3, erect, stout, branched from bases or beyond, hispid, tomentose, or tomentulose, sometimes stipitate-glandular distally.

basal and cauline; petiolate;

blades oblanceolate, often runcinate or lyrate, 5–30 × 1–8 cm, margins dentate to pinnately lobed (terminal lobes often relatively large), apices acute to obtuse, faces finely hispid (coarsely setose along midribs; cauline leaves lanceolate, bases sagittate with acuminate lobes, margins dentate to deeply laciniate proximally).

basal and cauline; petiolate;

blades elliptic, runcinate, (5–)8–20 × 2–5 cm, margins pinnately-lobed to sinuously dentate (lobes broadly lanceolate, often dentate), apices acute or acuminate, faces gray-tomentose, sometimes stipitate-glandular.

cylindro-campanulate, 6–10 × 4–10 mm.

cylindric, 11–19 × 5–10 mm.

10–20;

corollas yellow, sometimes reddish abaxially, 8–10 mm.

10–40;

corollas yellow, 18–22 mm.

12–16, lanceolate, 6–7 mm, (bases strongly keeled and thickened, margins green to yellowish), apices acuminate, abaxial faces coarsely setose or hispid, adaxial with fine hairs.

7–13, lanceolate, 12–15 mm, (bases thickened, keeled, margins green, often scarious) apices acute or acuminate, abaxial faces gray-tomentose, sometimes setose (setae black or greenish) or stipitate-glandular, adaxial glabrous or with fine hairs.

of 10–14, linear, coarsely setose bractlets 2–4 mm.

of 6–8, lanceolate or linear, glabrate to tomentose bractlets 2–6 mm.

10–20, in paniculiform or cymiform arrays.

2–30, in loose corymbiform arrays.

reddish brown, fusiform, 3–5 mm, beaked (beaks 1–2 mm), ribs 10 (rounded, spiculate near bases of beaks);

pappi white (fine, soft), 4 mm.

golden or dark brown, subcylindric, 6–10 mm, apices tapered (not beaked), ribs 10–18, strong and rounded;

pappi yellowish white, 10–12 mm (bristles unequal).

= 8.

= 22, 33, 44, 55, 66, 77, 88.