Flora of North America species comparison

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

1 or 2–4, loosely clustered, glabrous or sparsely tomentose proximally.

(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.

petiolate;

blades lanceolate to narrowly elliptic or oblanceolate, 30–60+ × 10–20+ mm, bases tapering, sometimes obtuse, margins subentire to dentate or serrate.

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

gradually reduced (proximals petiolate, sublyrate; mids sessile, not clasping, lanceolate, dissected, incised, or lacerate; distals sessile, bractlike).

bracteate, sparsely to densely tomentose.

usually bracteate, sometimes ebracteate, glabrous.

10 or 13;

corolla laminae 6–8+ mm.

0, 8, or 13;

corolla laminae (pale yellow) 5–10+ mm.

50–60+;

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

50–65+;

corolla tubes 2–3 mm, limbs 2–3 mm.

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

13 or 21, green, 5–8+ mm, glabrous.

inconspicuous.

inconspicuous.

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

2–10+ in loose or compact, corymbiform arrays.

1–1.5 mm, hispid;

pappi 5–7 mm.

1–2 mm, usually glabrous, sometimes hispidulous on ribs;

pappi 3.5–4.5 mm.

= 46.

= 44, 46, 92.