Herbs perennial. Leaves forming a rosette; petiole usually inconspicuous, occasionally to 1/2 as long as leaf blade; leaf blade lanceolate to linear-lanceolate or oblanceolate, 3--15 X 5--20 cm, abaxially very densely bright yellow or cream-yellow farinose, base long attenuate, margin denticulate to occasionally nearly entire, usually narrowly revolute, apex obtuse or occasionally acute. Scapes 8--30 cm, farinose toward apex; umbels 3--30-flowered; bracts linear to linear-lanceolate, 3--8(--10) mm. Pedicel 0.5--2.5 cm, sparingly yellow farinose. Flowers heterostylous. Calyx campanulate, 4--8(--10) mm, parted to ± middle, copiously farinose inside and at base of lobes; lobes lanceolate to narrowly lanceolate, apex acute. Corolla violet to deep violet-purple; tube 0.8--1.2 cm; limb 1.5--2 cm wide; lobes obovate, deeply emarginate. Pin flowers: stamens ca. 2 mm above base of corolla tube; style ca. as long as tube. Thrum flowers with positions reciprocal. Capsule oblong, slightly longer to 2 X as long as calyx. Fl. Jun-Jul.
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