Flora of North America species comparison

erect, 2–7(–10) dm, glabrescent or sparsely pubescent basally.

erect, 1–4(–8) dm, densely pubescent throughout, (trichomes retrorse, appressed).

blade elliptic to obovate, 2–15 cm × 10–60(–80) mm, margins sinuate to deeply pinnatifid, (2–5 lobes each side).

blades elliptic to obovate, 2.5–8 cm × 10–40 mm, margins sinuate to pinnatifid or lyrate, (2–5 lobes each side), (surfaces pubescent throughout, trichomes antrorse).

petiolate;

similar to basal, (distal cauline shortly petiolate, blade similar, with narrower segments), surfaces usually glabrescent.

(distal) sessile;

blade (base cuneate to broad, truncate), margins similar to basal, (distally reduced, subtending proximal flowers).

sepals 4–6 mm, glabrous or pubescent, trichomes straight;

petals yellow, 7–11(–13) × 5–8 mm, (apex rounded);

filaments 4–8 mm;

anthers 2.5–3 mm;

gynophore 0.5–3 mm.

sepals 4–5.5 mm, pubescent, trichomes ± flexuous;

petals white (turning purple when dried), 7–10 × 4–5 mm;

filaments 4–6.5 mm;

anthers 1.5–2 mm;

gynophore obsolete or to 0.5 mm.

8–35 mm.

3–10(–22) mm.

usually erect, rarely ascending, (somewhat torulose, slightly compressed), 2–5 cm × 1.5–2.5 mm;

terminal segment (stout), beaklike, 1.5–3 mm, seedless; (ovules 20–32(–46) per ovary).

erect-patent, 2–3.5(–4) cm × 1.5–2(–2.5) mm;

terminal segment beaklike, 2–5 mm, 1- or 2-seeded.

1–1.3 × 0.6–0.9 mm.

1–1.2 × 0.5–0.8 mm.

= 22.

= 14.