Flora of North America species comparison

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

usually 1 or 2–5, rarely 6–20, clustered, glabrous but for tomentose leaf axils.

(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).

petiolate;

blades elliptic-ovate, broadly oblanceolate, or lyrate (lateral lobes 3–9 pairs), 40–70 × 15–25 mm, bases tapering, margins irregularly and deeply parted or lobed (apices incised).

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

usually gradually, sometimes abruptly, reduced (petiolate or sessile; narrowly elliptic to oblanceolate, pinnatifid).

conspicuously bracteate, sparsely to densely tomentose.

ebracteate or bracteate, glabrous.

8–10;

corolla laminae 9–10 mm.

(10–)13;

corolla laminae 5–7+ mm.

60–70+;

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

60–75+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, light green, 4–6+ mm, glabrous.

inconspicuous.

usually 0, sometimes inconspicuous.

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

3–20+ in open or congested, corymbiform arrays, frequently subtended by smaller arrays from leaf axils.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

1–1.5 mm, hirsute on ribs;

pappi 3–5 mm.

= 46, 92.

= 36.