Herbs perennial, efarinose, with small oblong membranous basal bud scales. Petiole less than 1.5 cm; leaf blade obovate-oblong to obovate-oblanceolate, 5--15 X 3--7 cm, firm papery when dry, abaxially hirtellous along midvein and lateral veins, adaxially glabrescent, strongly bullate, base cuneate-attenuate, margin remotely hydathode-denticulate, apex rounded; veins distinctly raised, alveolate abaxially. Scapes 6--15 cm, sparsely pilose; umbels 3--7-flowered; bracts linear, 4--7 mm. Pedicel ca. 1.5 cm, pubescent. Flowers heterostylous. Calyx campanulate, 8.5--10 mm, pubescent, parted to 1/3 or slightly below; lobes ovate, ciliolate, apex short acuminate. Corolla bluish purple; limb 2--3 cm wide; lobes broadly obovate, emarginate. Pin flowers: corolla tube ca. 1.2 cm; stamens ca. 5 mm above base of corolla tube; style nearly as long as tube. Thrum flowers: corolla tube ca. 1.5 cm; stamens toward apex of corolla tube; style ca. as long as calyx. Capsule shorter than calyx. Fl. May, fr. Jun.
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