Flora of North America species comparison

1 or 2–3, clustered, floccose-tomentose proximally and in leaf axils, otherwise sparsely tomentose or glabrescent.

1 or 2–5 (often scapiform), loosely clustered, glabrous or leaf axils sparsely hairy.

(and proximal cauline) petiolate;

blades narrowly elliptic to elliptic-ovate or oblanceolate to suborbiculate or sublyrate, 20–70+ × 10–30+ mm, bases tapering to rounded or abruptly contracted, margins subentire to crenate, serrate-dentate, or pinnately lobed (abaxial faces floccose-tomentose, especially along midribs, ± glabrescent).

(and proximal cauline) petiolate;

blades obovate to ovate or sublyrate, 30–60+ × 10–40+ mm, bases tapering, margins deeply dissected or pinnatifid, ultimate margins crenate to crenate-dentate.

gradually reduced (petiolate, sublyrate or pinnatisect, abaxial faces sparsely hairy; distals sessile, subentire to irregularly dissected).

abruptly reduced or 0 (sessile; ovate to obovate, dissected or pinnatifid).

conspicuously bracteate, sparsely to densely tomentose.

inconspicuously bracteate or ebracteate, glabrous.

8–10;

corolla laminae 9–10 mm.

5 or 8;

corolla laminae 5–10 mm.

60–70+;

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

20–30+;

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

13 or 21, green (tips sometimes cyanic), 5–6+ mm, densely tomentose proximally, glabrescent distally.

(8–)13, light green (tips yellowish), 4–7 mm, glabrous.

inconspicuous.

0 or inconspicuous.

6–20+ in open or congested, corymbiform arrays.

4–10+ in subumbelliform cymiform arrays.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

1–1.5 mm, glabrous;

pappi 4–4.5 mm.

= 46, 92.

= 40.