Flora of North America species comparison

3-8 cm diam.

blade abaxially and adaxially green, widely ovate, 10-40(-45) × 7-30 cm, ca. 1.2-1.5 times as long as wide, sinus 1/3-2/3 length of midrib, lobes divergent to overlapping;

surfaces glabrous.

5-10 cm diam.;

sepals mostly (6-)9(-12), abaxially green to adaxially yellow, sometimes red-tinged toward base;

petals oblong, thick;

anthers 3.5-9 mm, slightly shorter than filaments.

green to yellow, cylindric to ovoid, 4-6(-9) × 3.5-6 cm, strongly ribbed, slightly constricted below stigmatic disk;

stigmatic disk green, 20-35 mm diam., entire to crenate;

stigmatic rays 8-26(-36), linear to lanceolate, terminating within 1(-1.5) mm from margin of disk.

3.5-5 mm.

= 34.