Flora of North America species comparison

1 or 2–5, clustered, usually glabrous, sometimes sparsely floccose-tomentose proximally and in leaf axils.

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

(and proximal cauline, relatively thick and turgid) petiolate;

blades spatulate to oblanceolate, or ovate to orbiculate, 20–40+ × 10–30+ mm, bases tapering to abruptly contracted or subcordate, margins entire, crenate, dentate, or weakly lobulate (faces usually glabrous, sometimes hairy).

(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.

gradually to abruptly reduced (± petiolate or sessile; entire or subentire).

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

bracteate, glabrous or sparsely tomentose.

bracteate, sparsely to densely tomentose.

8 or 13;

corolla laminae 5–10 mm.

10 or 13;

corolla laminae 6–8+ mm.

35–60+;

corolla tubes 2–4 mm, limbs 2.5–4 mm.

50–60+;

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

(8–)13 or 21, green (tips sometimes cyanic), 4–7+ mm, glabrous.

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

conspicuous.

inconspicuous.

2–20+ in loose, corymbiform or subumbelliform arrays.

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

1–2.5 mm, glabrous;

pappi 3–6 mm.

1–1.5 mm, hispid;

pappi 5–7 mm.

= 46, 92.

= 46.