Herbs perennial. Leaves forming a rosette; petiole 3--35 cm, with tawny or white, long hairs; leaf blade reniform, 3--12 X 2--14 cm, to 18 X 24 cm at fruiting, margin repand-crenate to lobulate and denticulate, abaxially with spreading multicellular hairs along veins, adaxially sparsely pilose, base deeply cordate. Scapes 10--70 cm, with tawny or white, long hairs; racemes lax; bracts 0.5--1.5 cm; lowest bracts elliptic, leaflike, gradually reduced upward, pubescent. Pedicel 0.5--1.5 cm, pubescent, elongating to 3 cm in fruit. Flowers heterostylous. Calyx widely campanulate, 7--10 mm, enlarging to 2 cm in fruit, herbaceous, pubescent, parted to 1/3--1/2; lobes ovate to triangular, margin entire to denticulate; veins prominent. Corolla yellow; tube 1--1.2 cm; limb 1.5--3 cm wide; lobes obovate, emarginate. Pin flowers: stamens ca. 4 mm above base of corolla tube; style ca. 8 mm. Thrum flowers: stamens toward apex of corolla tube; style ca. 4 mm. Capsule subglobose, 5--7 mm in diam. Fl. Jun-Jul.
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