Flora of North America species comparison

usually 1, rarely 2–3, clustered, glabrous.

1 or 2–3, clustered, bases and leaf axils usually loosely floccose-tomentose, sometimes glabrate.

(and proximal cauline) petiolate (petioles narrow);

blades narrowly lanceolate or ovate to oblong-ovate, 20–60+ × 10–40+ mm, bases abruptly contracted to tapering, margins subentire to crenate-dentate.

petiolate;

blades ovate to obovate or suborbiculate, 30–80 × 20–40+ mm, bases tapering, sometimes obtuse or contracted, margins serrate-dentate to weakly crenate (abaxial faces sometimes hairy).

gradually reduced (sessile, weakly clasping; lanceolate to oblong or sublyrate, often pinnately lobed).

gradually reduced (petiolate, often sublyrate, sometimes weakly pinnatisect; mids and distals sessile, pinnatisect to subentire).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

bracteate, loosely tomentose or glabrescent.

8 or 13;

corolla laminae (deep yellow to orange-red) 6–8+ mm.

8 or 13;

corolla laminae 5–8 mm.

60–80+;

corolla tubes 4.5–5.5 mm, limbs 2.5–3.5 mm.

50–65+;

corolla tubes 2–4 mm, limbs 2.5–3.5 mm.

13 or 21, light green (or tips cyanic), 4–8 mm, glabrous.

(13–)21, green, 5–7 mm, glabrous or sparsely tomentose.

0 or inconspicuous.

0.

7–15+ in open, corymbiform arrays.

3–9+ in open, corymbiform arrays.

1–1.5 mm, glabrous;

pappi 3–5 mm.

1–2 mm, glabrous;

pappi 3.5–4.5 mm.

= 46.

= 44.