Herbs perennial, with remains of old leaves at base. Petiole narrowly winged, usually shorter than leaf blade, occasionally longer; leaf blade spatulate to oblanceolate, 10--30 X 3--5 mm, abaxially minutely glandular, short pubescent along midvein, adaxially scabrous, short glandular pubescent, base attenuate, margin deeply pinnatifid-dentate with sublinear teeth, apex rounded. Scapes 2--9 cm, sparsely glandular; umbels 2--4-flowered; bracts ovate to linear-lanceolate, 3--4 mm. Flowers subsessile, heterostylous. Calyx campanulate, 3--4 mm, minutely short-stalked glandular outside, parted to middle; lobes triangular to oblong, usually white farinose inside, apex acute to obtuse. Corolla purple or blue-purple, rarely white; tube ca. as long as to slightly longer than calyx, pubescent outside, with a tuft of white hairs obscuring throat; limb 8--10 mm wide; lobes obovate, deeply emarginate. Pin flowers: stamens near base of corolla tube; style reaching mouth. Thrum flowers with positions reciprocal. Capsule cylindric, ca. as long as calyx. Fl. Jul. 2n = 18.
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