Flora of North America species comparison

1, glabrous or sparsely tomentose.

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

(and proximal cauline) petiolate;

blades ovate, oblanceolate, or spatulate, 10–30 × 5–20 mm, bases tapering, sometimes obtuse, margins entire, subentire, or dentate.

(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).

abruptly reduced (sessile, clasping; bractlike, entire).

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

bracteate (bractlets red-tinged), densely lanate-tomentose.

conspicuously bracteate, sparsely to densely tomentose.

(8–)13;

corolla laminae 6–10+ mm.

8–10;

corolla laminae 9–10 mm.

35–50+;

corolla tubes 2.5–3.5 mm, limbs 3–4 mm.

60–70+;

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

(13–)21, green (tips red or dark red), densely tomentose proximally.

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

conspicuous (bractlets narrow, red-tinged).

inconspicuous.

1–4+ in corymbiform arrays.

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

1.5–2 mm, glabrous;

pappi 5–6 mm.

1.5–2.5 mm, usually hirtellous, sometimes glabrous;

pappi 6.5–7.5 mm.

= 46.

= 46, 92.