Flora of North America species comparison

6-12 dm;

leaves alternate, unequal in size;

proximal leaf petioles 10-18 cm, blades 17-46 × 23-56 cm;

distal leaf petioles 3-15 cm, blades 10-38 × 15-51 cm.

blades 13-53 cm diam.;

leaf blade divided at apex and base into 2 parts, each part 5-9-lobed, lobes broadly acuminate, abaxially sparsely pubescent with unicellular hairs.

cymose, glabrous;

peduncle 0.2-4 cm;

pedicel 0.7-3.5 cm;

peduncle and pedicel turning red at fruit maturity.

7-70 (or more);

outer sepals 1.7-4.5 × 0.4 mm;

inner sepals 2.5-6 × 3.5-4 mm;

outer petals narrowly obovate, 9-11 × 4.5-6 mm;

inner petals elliptic to obovate, 10-13×6-7 mm;

stamens 3-4 mm;

filaments 1-2 mm;

anthers 2 × 1 mm;

ovaries ellipsoid, 3-5 × 1.5-2.5 mm;

stigma 0.5-1 mm.

6-13 × 4-11 mm.

2-4, 4-7 × 2-5 mm, abaxially rounded, adaxially flattened to concave.

= 12.