Herbs perennial. Leaves forming a rosette; petiole 1/4--1/3 as long as leaf blade; leaf blade oblanceolate to obovate, 5--13 X 1--2.5(--3.5) cm, abaxially sparingly pale-yellow farinose, base long attenuate, margin entire or remotely obscure denticulate, apex obtuse. Scape (12--)18--35 cm, efarinose; umbels 5--14-flowered; bracts linear-lanceolate, 2.5--4 mm, scarcely farinose. Pedicel (1.5--)2--4.5 mm. Flowers heterostylous. Calyx campanulate, 4--6 mm, sparingly white farinose outside, densely so inside, parted to 1/3; lobes oblong-lanceolate, apex obtuse to acute. Corolla bluish purple, 1.3--1.8 mm in diam.; lobes obovate, 6--7 mm, deeply emarginate. Pin flowers: corolla tube ca. 1 cm; stamens ca. 3 mm above base of corolla tube; style ca. 5 mm. Thrum flowers: corolla tube ca. 1.3 cm; stamens at middle of corolla tube; style ca. 2 mm. Capsule cylindric, ca. 2 X as long as calyx. Fl. May.
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