Herbs perennial, efarinose, glabrous. Leaves forming a rosette; petiole indistinct to 3 cm, winged with decurrent leaf blade; leaf blade elliptic to oblong or oblanceolate, 2--8 X 0.6--3 cm, base attenuate, margin irregularly sharp dentate, apex acute to subobtuse, sparsely minutely brown punctate. Scape 5--20 cm, densely glandular toward apex; umbels compact, 3--10-flowered; bracts ovate to ovate-oblong, 6--15 X 2--5 mm, leaflike, margin entire or with 1 or 2 teeth. Pedicel 1--2 mm. Flowers heterostylous. Calyx campanulate, 7--10 mm, parted to ± middle, 5-veined; lobes oblong, apex acute to subobtuse. Corolla yellow, tubular-campanulate, 1.8--2.5 cm; limb 1.2--1.5 cm wide; lobes erect, oblong, 5--8 X 4--5.5 mm, apex rounded to apiculate. Pin flowers: stamens ca. 2 mm above base of corolla tube; style ca. 7 mm. Thrum flowers: stamens ca. 5 mm above base of corolla tube; style ca. 1 mm. Capsule oblong, slightly shorter than calyx. Fl. Jun-Jul, fr. Jul-Aug.
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