Flora of North America species comparison

terete, glabrous (sometimes glaucous).

terete, hirsute, hispid, or scabrous.

basal persistent, petiolate;

cauline alternate, petiolate or sessile;

blades cordate, deltate, elliptic, hastate, ovate, reniform, or sagittate, 2–35 × 0.5–52 cm, sometimes (proximal) pinnately or palmately lobed, bases oblique, truncate, attenuate, cordate, sagittate, or hastate, ultimate margins toothed, apices acute, faces glabrous, hispid, or scabrous.

basal persistent, petiolate or sessile;

cauline petiolate or sessile;

blades lanceolate, linear, ovate, or rhombic, 4–60 × 1–30 cm, usually (proximal) 1–2-pinnately lobed, bases attenuate to truncate, ultimate margins unevenly toothed or entire, apices acute, faces hirsute, hispid, or scabrous.

6–12;

corollas yellow.

27–38;

corollas yellow.

20–85;

corollas yellow.

100–275;

corollas yellow.

11–18 in 2–3 series, outer appressed to reflexed, apices obtuse to cuspidate, abaxial faces sparsely scabrous.

25–45 in 2–3 series, outer reflexed or appressed, apices acuminate to caudate, abaxial faces hispid to scabrous, ± stipitate-glandular.

6–12 × 4–10 mm;

pappi 1–4 mm.

10–18 × 6–12 mm;

pappi 1–3 mm.

= 14.

= 14.