Flora of North America species comparison

1 or multiple, loosely clustered, usually glabrous, sometimes tomentose proximally and in leaf axils.

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

(and proximal cauline) petiolate;

blades orbiculate, ovate, or obovate, 40–100+ × 20–80+ mm, bases tapering, rounded, or abruptly contracted, margins crenate, dentate, or serrate.

(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.

gradually reduced (sessile, clasping; pinnatisect or sublyrate).

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

bracteate, glabrous or proximally tomentose.

ebracteate or bracteate (bractlets inconspicuous), glabrous.

8–13(–21);

corolla laminae 7–10 mm.

8 or 13;

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

40–50+;

corolla tubes 2–3 mm, limbs 2–3 mm.

60–80+;

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

13 or 21, green (tips sometimes reddish), 3–6 mm, glabrous or floccose-tomentose proximally.

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

conspicuous.

0 or inconspicuous.

6–15+ in open or congested, corymbiform arrays.

7–15+ in open, corymbiform arrays.

1–1.5 mm, glabrous or hirsute on ribs;

pappi 3–6 mm.

1–1.5 mm, glabrous;

pappi 3–5 mm.

= 44, 88, 90.

= 46.