Flora of North America species comparison

terete, hirsute, hispid, or scabrous.

terete, glabrous, hirsute, 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.

basal persistent, petiolate;

cauline usually alternate, rarely subopposite, petiolate or sessile;

blades deltate, elliptic, linear, ovate, or rhombic, 2–40 × 1.5–26 cm, sometimes (proximal) 1–2-pinnately lobed, bases attenuate, cuneate, or truncate, ultimate margins unevenly toothed or entire (distal blades), apices acuminate to apiculate, faces scabrous to hirsute.

27–38;

corollas yellow.

14–30;

corollas white.

100–275;

corollas yellow.

70–130;

corollas white.

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

23–36 in 2–3 series, outer reflexed, apices acuminate, abaxial faces hispid.

10–18 × 6–12 mm;

pappi 1–3 mm.

12–26 × 7–12 mm;

pappi 2–5 mm.

= 14.