Flora of North America species comparison

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

1 or 3–5, loosely clustered, glabrous or bases and leaf axils tomentose.

(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, relatively thick and turgid) petiolate (petioles sometimes winged);

blades elliptic-ovate or suborbiculate to spatulate, 15–25 × 5–20 mm, bases tapering, margins entire or dentate (at apices).

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

abruptly reduced (becoming sessile, bractlike).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

ebracteate, glabrous.

8 or 13;

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

(0) or 8–13;

corolla laminae 7–9 mm.

60–80+;

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

35–50+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

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

13, cyanic, 8–9 mm, glabrous or loosely tomentose proximally.

0 or inconspicuous.

inconspicuous.

7–15+ in open, corymbiform arrays.

1–2(–4).

1–1.5 mm, glabrous;

pappi 3–5 mm.

1–2 mm, glabrous;

pappi 3–4.5 mm.

= 46.