Herbs perennial, with a short rootstock, base with few bud scales. Leaves forming a rosette; petiole initially very short, nearly as long as leaf blade at fruiting; leaf blade obovate to oblanceolate, 5--12 X 2--4 cm, enlarging to 15 X 5.5 cm at fruiting, abaxially pale yellow farinose when young, soon becoming efarinose, base attenuate, rounded to cordate, margin denticulate, apex rounded to obtuse. Scape 5--30 cm, sometimes to 40 cm, yellow farinose toward apex; umbels 1 or 2, superimposed, 5--10-flowered; bracts linear, 5--8 mm, densely glandular. Pedicel nearly as long as bracts, elongating to 4.5 cm in fruit. Flowers heterostylous. Calyx tubular-campanulate, 6--9 mm, minutely glandular, parted to middle or below; lobes lanceolate to sublinear, apex obtuse to acute. Corolla yellow; limb ca. 1.5 cm wide; lobes obovate to suborbicular, with 4--6 teeth at apex. Pin flowers: corolla tube 1.3--1.5 cm; stamens at middle of corolla tube; style nearly as long as tube. Thrum flowers: corolla tube 1.5--1.8 cm; stamens toward apex of corolla tube; style slightly exceeding middle of tube. Capsule cylindric, 2--3 X as long as calyx. 2n = 18, 22.
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