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).

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).

cylindro-campanulate, 6–10 × 4–10 mm.

10–20;

corollas yellow, sometimes reddish abaxially, 8–10 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.

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

10–20, in paniculiform or cymiform 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.

= 8.