Flora of North America species comparison

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

1–3, erect (often reddish), stout, mostly simple, sparsely to densely tomentose, often stipitate-glandular proximally.

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 (at least basal);

blades elliptic, runcinate, 8–20 × 2–5 cm, margins pinnately lobed (lobes broadly lanceolate, coarsely dentate, midribs often reddish), apices acute, faces sparsely to densely tomentose, stipitate-glandular.

cylindro-campanulate, 6–9 × 7–8 mm.

cylindric, 11–21 × 5–15 mm.

30–70;

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

11–40;

corollas yellow, 16–20 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.

10–14, lanceolate, 10–14 mm (margins yellowish), apices acute, abaxial faces glabrous or ± tomentose, sometimes setose and stipitate-glandular, adaxial glabrous or with fine hairs.

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

of 8–10, deltate or lanceolate, tomentose bractlets 3–8 mm.

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

2–22 (1–3 per branch), in 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.

dark or pale brown to yellowish, fusiform, 6–11 mm, apices ± tapered, ribs 10–13;

pappi whitish, 6–13 mm.

= 8.

= 22, 33, 44, 55.