Herbs perennial. Leaves forming a rosette; petiole 2--20 cm, narrowly winged, vaginate at base; leaf blade ovate to ovate-oblong or suborbicular, 1--7 X 1--5 cm, abaxially sparsely minutely glandular, adaxially glabrous, base shallowly cordate, deeply crenate-dentate, apex rounded. Scapes 10--40 cm, scarcely yellow farinose toward apex; umbels 2--8-flowered; bracts lanceolate to ovate-lanceolate, 7--12 mm, margin often dentate. Pedicel 1--4 cm, glandular, sometimes farinose toward apex. Flowers heterostylous. Calyx campanulate, 5--8 mm, glandular, ± yellow farinose outside, parted to middle, 5-veined; lobes lanceolate to triangular-lanceolate, ciliolate. Corolla yellow; tube ca. 1 cm; limb 1.3--2 cm wide; lobes obovate, 7--9 mm, nearly erect, emarginate to crenulate at apex. Pin flowers: stamens ca. 2 mm above base of corolla tube; style ca. as long as tube. Thrum flowers: stamens toward apex of corolla tube; style ca. 1 mm. Capsule cylindric, ca. as long as to slightly longer than calyx. Fl. May-Jun. 2n = 22.
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