Flora of North America species comparison

terete, glabrous.

terete, glabrous.

basal persistent, petiolate;

cauline alternate, petiolate or sessile;

blades cordate, deltate, lanceolate, ovate, or sagittate, 3–40 × 1–40 cm, sometimes (proximal) pinnately lobed, bases attenuate, cordate, hastate, round, or truncate, ultimate margins coarsely toothed or entire, apices acuminate, acute, or obtuse, faces glabrous or scabrous.

basal caducous;

cauline opposite, petiolate;

blades lanceolate, hastate, ovate, or sagittate, 1–24 × 0.5–18 cm, bases cuneate, or round (distal), or cordate, truncate, hastate, or sagittate (proximal), margins coarsely dentate or entire, apices acuminate to acute, faces sparsely hirsute, hispid, or scabrous.

17–29;

corollas yellow.

7–9;

corollas yellow.

120–140;

corollas yellow.

20–40;

corollas yellow.

23–33 in 2–3 series, outer appressed, apices obtuse to acute, abaxial faces glabrous.

11–15 in 2–3 series, outer reflexed or appressed, apices acute, abaxial faces scabrous.

7–13 × 4–10 mm;

pappi 0–1 mm.

7–8 × 5–6 mm;

pappi 0.5–1 mm.

= 14.