Flora of North America species comparison

1 or 2–3, clustered, densely lanate-tomentose or canescent, tufts of arachnoid tomentum in leaf axils, or glabrescent.

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

(thick, leathery) petiolate;

blades narrowly lanceolate or oblanceolate, 25–100+ × 5–20 mm, bases tapering, margins entire, subentire, dentate, or wavy (adaxial faces early glabrescent).

(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).

gradually reduced (sessile; lanceolate to oblanceolate, entire or wavy).

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

0 (or relatively reduced, then densely tomentose).

conspicuously bracteate, sparsely to densely tomentose.

(5–)8;

corolla laminae 8–10+ mm.

8–10;

corolla laminae 9–10 mm.

35–45+;

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

60–70+;

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

(8–)13, green (tips red), 3–6 mm, densely tomentose proximally, glabrate distally.

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

inconspicuous (bractlets red-tipped).

inconspicuous.

10–30+ in open or congested, cymiform arrays.

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

1–1.5 mm, glabrous;

pappi 5–6 mm.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

= 46.

= 46, 92.