Flora of North America species comparison

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

1 or 3–4+, clustered, sparsely tomentose to glabrescent.

(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;

blades narrowly elliptic or lanceolate to oblanceolate, 40–70+ × 5–20+ mm, bases tapering, margins entire or subentire to weakly and irregularly dentate (especially at apices).

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

gradually reduced (distal sessile, bractlike).

ebracteate or bracteate (bractlets inconspicuous), glabrous.

bracteate (bractlets usually red-tipped), sparsely tomentose to glabrate.

8 or 13;

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

5 or 8;

corolla laminae 12–16 mm.

60–80+;

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

50–60+;

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

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

13 or 21, dark green proximally, becoming light green distally (tips red), 7–11+ mm, floccose-tomentose proximally.

0 or inconspicuous.

conspicuous (bractlets red-tipped).

7–15+ in open, corymbiform arrays.

5–12+ in open, cymiform arrays.

1–1.5 mm, glabrous;

pappi 3–5 mm.

2.5–3.5 mm, glabrous;

pappi 7–8 mm.

= 46.

= 92.