Flora of North America species comparison

erect, green to reddish or purple mottled, proximally glabrous, distally sparsely tomentulose.

1(–10), erect or ascending, green to purple, usually simple, glabrous or glabrate proximally, tomentulose distally.

proximal often withered by flowering; petiolate (petioles 1–10 cm, often with pair of lobes);

blades deltate to ovate or elliptic, 5–20 × 4–10 cm, coriaceous, margins usually deeply, pinnately 3–5-lobed, lobes and sinuses large and ± rounded, sometimes deeply cleft to base or palmately divided, apices acute or obtuse, ultimate margins entire or dentate, faces glabrous or finely tomentose on veins;

cauline sessile or petiolate;

distal reduced in size and lobing, often entire.

proximal present at flowering;

petioles winged (2–6 cm);

blades triangular to irregularly elliptic, 3–25 × 1–7 cm, thin or slightly coriaceous, bases abruptly constricted, truncate to slightly hastate, margins irregularly dentate or coarsely serrate, apices acute to acuminate, faces glabrate;

distal sessile, ovate to lanceolate, reduced.

cylindric (often attenuate basally to bracteate peduncles), 12–15 × 4–5 mm.

narrowly campanulate, 10–13 × 5–6 mm.

(8–)10–14(–19);

corollas usually yellow to pale yellow, 9–15 mm.

7–16;

corollas white to purplish, 9–16 mm.

(7–)8–(10), green or often purple, narrowly lanceolate to elliptic, 10–13 mm, sparsely hispid to appressed, coarsely setose, often reduced to single coarse, appressed seta (setae green or tan).

8, green to dark green, lanceolate, 8–11 mm, margins scarious, apices acute, finely tomentulose.

of 8–10, green to purple, triangular to subulate bractlets 1–4 mm, often tomentulose to setose.

of 2–3, dark green, lanceolate or subulate bractlets 1–3 mm, glabrous or finely tomentulose.

(6–12 in nodding clusters) in broad, paniculiform to corymbiform arrays (often widely branching and subdichotomous, at least some branches elongate).

(10–17) in broad, corymbiform arrays, lateral branches often elongate and overtopping main stems.

golden brown to light tan, subcylindric, subterete or angled, 5–8 mm, indistinctly 8–10-ribbed;

pappi tan, 7–8 mm.

brown to light tan, subcylindric, 4–7 mm, weakly 7–10-ribbed;

pappi pale yellow to dull white, 8–10 mm.

= 16.

= 16.