Flora of North America species comparison

(sometimes purple-tinged) glabrous.

unevenly villous-tomentose or floccose, glabrescent.

usually 1 (freely branching upward).

single (from loosely clustered basal leaves).

equally distributed; petiolate;

blades ovate to obovate, 2–6 × 0.5–2(–4) cm, bases tapered, margins coarsely lobed or irregularly dentate (mid and distal leaves similar, bases expanded, truncate to cordate, clasping, 1–2 cm across).

progressively reduced distally; ± petiolate;

blades ovate to oblanceolate, (3–)4–8(–10) × 2–3(–4) cm, bases tapered, margins shallowly dentate (mid and distal leaves smaller, bractlike, often clasping).

0 or 1–3+;

corolla laminae 0.1–1 mm (little expanded, barely, if at all, surpassing phyllaries; sometimes laminae 0 and heads perhaps technically disciform).

± 8;

corolla laminae 8–15 mm.

± 8 or ± 13, 6–7 mm, tips green.

(± 8) ± 13, 8–10 mm, tips black (villous).

of 3–5+ lance-linear bractlets.

of 2–7 lance-linear to linear bractlets (lengths 1/3–2/3 phyllaries).

3–10 in loose, cymiform arrays.

erect or weakly nodding (especially in bud), (2–)5–9(–12) in loose, cymiform arrays.

hairy.

glabrous.

= 40.

= 40.