Flora of North America species comparison

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

1 or 2–4, clustered (proximally deeply purple-tinged, distally lightly tinged), glabrous or tomentose at bases and in leaf axils.

(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.

(and proximal cauline) petiolate;

blades obovate or lyrate (pinnately lobed, lateral lobes 2–6+ pairs, their bases petioluliform, terminal lobes larger than laterals, midribs narrowly winged), 60–160+ × 20–40+ mm, bases wide, ultimate margins sharply dentate, crenate-dentate, or irregularly incised.

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

gradually reduced (petiolate or sessile; shallowly lobed, midribs ± winged, distals bractlike, dentate to incised).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

ebracteate, glabrous.

8 or 13;

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

(8–)13;

corolla laminae 6–10+ mm.

60–80+;

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

60–70+;

corolla tubes 2–3 mm, limbs 3.5–4.5 mm.

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

(13–)21, green (tips yellow), 5–7 mm, glabrous (tips sometimes hairy).

0 or inconspicuous.

inconspicuous.

7–15+ in open, corymbiform arrays.

15–40+ in open, cymiform arrays.

1–1.5 mm, glabrous;

pappi 3–5 mm.

1.5–2 mm, glabrous or ± scabrellous;

pappi 5.5–6.5 mm.

= 46.

= 92.