Flora of North America species comparison

1, densely lanate-tomentose proximally, floccose-tomentose to glabrescent distally.

1 (often cyanic), glabrous.

(and proximal cauline) petiolate;

blades lanceolate to narrowly ovate or elliptic, 40–120+ × 20–50+ mm, bases tapering, sometimes oblique, margins subentire, crenate, or serrate-dentate.

(relatively turgid, abaxial faces cyanic) petiolate;

blades reniform to subreniform, 5–15+ × 5–25+ mm, bases abruptly contracted to cordate, margins usually crenate, sometimes wavy.

gradually reduced (± petiolate or sessile, weakly clasping; dentate to pinnately lobed).

abruptly reduced (1–4, sessile; bractlike, entire).

bracteate, sparsely to densely tomentose.

ebracteate, glabrous.

10 or 13;

corolla laminae 6–8+ mm.

8 or 13;

corolla laminae 8–10+ mm.

50–60+;

corolla tubes 3.5–4 mm, limbs 3–3.5 mm.

40–50+;

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

13 or 21, light green, 5–8 mm, usually glabrous (sometimes hairy proximally).

13 or 21, deep red, 8–10+ mm, glabrous.

inconspicuous.

conspicuous (bractlets often cyanic).

10–30+ in open, corymbiform arrays (more in robust individuals).

borne singly.

1–1.5 mm, hispid;

pappi 5–7 mm.

1.5–2.5 mm, glabrous;

pappi 4–5.5 mm.

= 46.