Herbs perennial, efarinose, lacking basal bud scales at anthesis. Leaves forming a rosette; petiole usually shorter to occasionally nearly as long as leaf blade; leaf blade elliptic to oblanceolate, 5--12 X 1.5--4(--6) cm, base attenuate, margin denticulate, apex acute to obtuse. Scapes 12--50(--75) cm; umbels 1 or 2(or rarely 3 or 4), superimposed, 4--15-flowered; bracts lanceolate, 5--10 mm. Flowers heterostylous. Calyx tubular-campanulate, 8--10 mm, parted to middle; lobes oblong-lanceolate. Corolla pale yellow; tube 1.4--1.5 cm; lobes reflexed, lying against tube, oblong, 6--8 X 3--4 mm. Pin flowers: stamens 6--7 mm above base of corolla tube; style ca. as long as tube. Thrum flowers with positions reciprocal. Capsule cylindric, to 2 cm. Fl. Jun. 2n = 22@.
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