Flora of North America species comparison

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

1–5, erect, stout, branched near or beyond middles, tomentulose (at least 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;

blades elliptic to lanceolate, 8–40 × 0.5–6(–11) cm, margins deeply pinnately lobed, lobes 5–10 pairs, usually lobed (± halfway to midveins, lobes entire), apices long-acuminate, faces ± tomentulose.

cylindro-campanulate, 6–9 × 7–8 mm.

cylindro-campanulate, 8–16 × 2–3 mm.

30–70;

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

5–10(–15);

corollas yellow, 10–18 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.

5–8, (medially green) lanceolate, 8–12 mm, (margins yellowish, often scarious), apices acute (ciliate), abaxial faces usually glabrous, sometimes sparsely tomentulose, adaxial glabrous.

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

of 5–7, triangular, tomentulose bractlets 1–2 mm.

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

30–70(–100+), in compound, corymbiform 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.

pale yellowish brown, subcylindric, 6–9 mm, apices ± narrowed (not beaked), ribs 12;

pappi white, 6–9 mm.

= 8.

= 22, 33, 44, 55, 88.