Flora of North America species comparison

usually simple from base, (2–)3–8 dm, (retrorsely hispid).

often simple from base, (1–)4–13 dm.

petiole 1–6 cm;

blade oblong, obovate, or oblanceolate in outline, lyrate or pinnatifid, sometimes undivided, 3–15(–22) cm × 10–50 mm, margins dentate, apex obtuse or acute;

lobes 1–4 each side, oblong or ovate, to 4 cm × 20 mm (smaller than terminal).

petiole 1–30 cm;

blade oblong, obovate, oblanceolate, or spatulate in outline, lyrate or pinnatisect, sometimes undivided, 2–60 cm × 10–200 mm, margins dentate, apex obtuse or acute;

lobes 1–12 each side, oblong or ovate, to 10 cm × 50 mm.

(distal) subsessile;

blade often undivided.

(distal) subsessile;

blade often undivided.

sepals 7–11 × 1–2 mm, sparsely pubescent;

petals yellow or creamy white (veins dark brown or purple), 15–25 × 4–7 mm, claw to 15 mm;

filaments (slender), 7–12 mm;

anthers 2–2.5 mm.

sepals 5.5–10 × 1–2 mm, glabrous or sparsely pubescent;

petals usually purple or pink, sometimes white (veins often darker), 15–25 × 3–8 mm, claw to 14 mm;

filaments 5–12 mm;

anthers 1.5–2 mm.

divaricate or ascending, 7–25 mm, (straight).

spreading to ascending, 5–40 mm.

cylindrical or narrowly lanceolate;

valvular segment 1–1.5 mm;

terminal segment (1.5–)2–11(–14) cm × (2.5–)3–8(–11) mm, (base rounded), strongly constricted between seeds (usually breaking), strongly ribbed, beak narrowly conical;

style 10–50 mm.

usually fusiform or lanceolate, sometimes ovoid or cylindrical;

valvular segment 1–3.5 mm;

terminal segment (1–)3–15(–25) cm × (5–)7–13(–15) mm, smooth or, rarely, slightly constricted between seeds, not ribbed, beak narrowly to broadly conical to linear;

style 10–40 mm.

(reddish brown or dark brown to black), oblong or ovoid, 2.5–3.5 × 1.8–2.5 mm.

globose or ovoid, 2.5–4 mm diam. 2n = 18.

= 18.