Flora of North America species comparison

erect, often mottled purple or nearly all purple (often with stout bases, 8–12 mm diam.), proximally glabrous, tomentulose distally.

erect, greenish to purplish, glabrous proximally, often tomentulose distally.

proximal present at flowering;

petioles narrowly winged (to 18 cm);

blades usually ovate to triangular or cordate, 4–30 × 3–18 cm, thin to coriaceous, bases often hastate, margins usually coarsely dentate or serrate, sometimes deeply 3-lobed or parted, lobes acute, faces glabrous adaxially, pale to whitish and sometimes hirsute abaxially;

distal reduced.

proximal present at flowering;

petioles winged;

blades usually ovate or triangular, 4–15 × 2–16 cm, thin, bases truncate to hastate or cordate, margins entire or shallowly dentate, often deeply 3-lobed, faces glabrous or with scattered hairs on veins;

distal reduced in size and lobing.

cylindric to campanulate, 13–15 × 3–5 mm.

cylindric, 9–14 × 2–3 mm.

7–9(–13);

corollas whitish to pale pink, lavender or red, 9–15 mm.

(4–)5(–6);

corollas pale yellow to greenish yellow, 7–15 mm.

(6–)8(–9), ± purplish or maroon, lanceolate, 10–13 mm, margins scarious, minutely ciliate, apices acute, faces glabrous.

(4–)5(–6), pale green, often blackish at bases and apices, linear to lanceolate, 10–12 mm, glabrous or sparsely hairy.

of 5–7, triangular to lanceolate bractlets 1–3 mm, glabrous.

of 4–6, blackish, triangular bractlets 1–4 mm, glabrous.

(3–8, in clusters) in paniculiform arrays (densest near apices).

in narrow or spreading, paniculiform arrays.

brown or tan, elliptical to linear, 3.5–6 mm;

pappi usually reddish brown, sometimes rusty, rarely yellowish, 6–7 mm.

brown to tan, subcylindric, subterete, 4–5 mm, indistinctly 5–10-ribbed;

pappi usually whitish or pale yellow, sometimes reddish brown, 5–6 mm.

= 32.

= 16.