Flora of North America species comparison

1 or 2–3, loosely clustered, glabrous or glabrate.

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

petiolate;

blades elliptic-ovate, oblong, or subreniform, 20–50 × 10–40+ mm, bases subcordate, truncate, or cuneate, margins usually crenate-dentate to coarsely dentate-lacerate, seldom subentire.

(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 reduced (petiolate, resembling basals, sublyrate or dissected; distal sessile, subentire to pinnatifid).

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

ebracteate (or bractlets inconspicuous), glabrous or glabrate.

bracteate, sparsely to densely tomentose.

0 or 8–10;

corolla laminae (deep yellow) 3–5 mm.

10 or 13;

corolla laminae 6–8+ mm.

60–70+;

corolla tubes 2–3 mm, limbs 2.5–3.5 mm.

50–60+;

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

13 or 21, green (tips sometimes reddish), 7–9 mm, glabrous.

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

conspicuous (bractlets green, tips sometimes reddish).

inconspicuous.

8–20+ in subumbelliform arrays.

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

1–2 mm, glabrous;

pappi 3–4 mm.

1–1.5 mm, hispid;

pappi 5–7 mm.

= 46, 126, 176, 184.

= 46.