Flora of North America species comparison

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

1–4, erect, slender to stout, simple or sparsely branched, glabrate to tomentose and bristly-setose.

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;

basal blades lanceolate, 7–25 × 2–4 cm, margins deeply pinnately lobed (lobes lanceolate, dentate, teeth mucronate), apices acuminate, faces tomentulose (at least when young).

cylindro-campanulate, 6–9 × 7–8 mm.

cylindric, 11–21 × 5–10 mm.

30–70;

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

10–60;

corollas yellow, 13–22 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.

8–18, (medially green) lanceolate, 10–16 mm, (bases keeled, margins yellowish, often scarious), apices acute, abaxial faces often densely, blackish or whitish tomentose or setose, sometimes glabrous, adaxial with fine (shiny) hairs.

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

of 8–10, lanceolate, tomentose and often setose bractlets 2–4 mm.

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

1–9, borne singly or 2–9 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.

blackish or greenish, reddish, reddish brown, or yellowish, subcylindric to fusiform, 7–12 mm, apices tapered or beaked (beaks 1–3 mm), ribs 10 (strong to weak);

pappi dusky white, 5–13 mm.

= 8.

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