Herbs perennial, efarinose, lacking basal bud scales at anthesis. Leaves forming a rosette; petiole narrowly winged, nearly as long as to longer than leaf blade; leaf blade oblong to elliptic or ovate, rarely lanceolate, 2.5--8 X 1--2.5(--3.5) cm, abaxially glaucous, adaxially dark green, base broadly cuneate, rarely subrounded, margin denticulate, apex acute to obtuse. Scapes 15--30 cm; umbels 1 or 2, superimposed, 3--15-flowered; bracts lanceolate, 5--9 mm. Pedicel 0.5--5 cm. Flowers heterostylous. Calyx tubular, 8--10 mm, parted to middle or slightly below; lobes lanceolate to oblong-lanceolate. Corolla yellow; limb 1.5--1.8 cm wide; lobes oblong, 7--9 X 3.5--4 mm, margin entire. Pin flowers: corolla tube 1.2--1.3 cm; stamens toward middle of tube; style reaching mouth of tube. Thrum flowers: corolla tube 1.4--1.8 cm; stamens toward apex of corolla tube; style ca. 4 mm. Capsule cylindric, slightly longer than calyx. Fl. May-Jul.
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