Flora of North America species comparison

1, erect (fistulose), branched distally or from bases, tomentulose and/or hispid.

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

basal and cauline; petiolate;

blades lanceolate to oblanceolate, often coarsely runcinate, 5–15 × 1–4 cm, margins entire, denticulate, or dentate to pinnately lobed (lobes remote, coarse, unequal), apices acute to acuminate, abaxial faces glabrous or tomentose, adaxial glabrous (proximal cauline sessile, bases auriculate, distal usually linear, entire).

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, 6–9 × 7–8 mm.

cylindro-campanulate, 6–10 × 4–10 mm.

30–70;

corollas yellow (without red on ligules), 10–13 mm.

10–20;

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

12–15, lanceolate, 5–9 mm, (bases becoming keeled and thickened, margins scarious), apices acute to attenuate (white-ciliate, tomentulose), abaxial faces tomentose to hispidulous, adaxial with fine, appressed hairs.

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 ± 12, subulate, tomentose and hispidulous bractlets 2–5 mm (often becoming scarious).

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

5–20(–100+), in paniculiform or corymbiform arrays.

10–20, in paniculiform or cymiform arrays.

dark reddish or purplish brown, fusiform, 3–4 mm, apices constricted (not beaked), ribs 10 (rounded, minutely spiculate);

pappi white (fine, soft), 4–5 mm.

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.

= 8.