Herbs perennial. Basal bud scales ovate to oblong, to 2.5 cm, reddish. Petiole broadly winged, nearly as long as leaf blade, mostly enveloped by basal scales; leaf blade elliptic to oblong, 20--40 X 5--10 mm, minutely glandular, base cuneate or subrounded, margin crenate-dentate, apex obtuse to rounded. Scapes nearly obsolete to 1.5 cm, sparsely glandular, with a solitary flower; bracts usually 2 or 3, linear, 4--15 mm. Pedicel 1--1.5 cm. Flower heterostylous. Calyx slightly tinged with red, campanulate, 8--9 mm, glandular, parted to middle; lobes ovate to ovate-lanceolate, margin entire, apex rounded to obtuse. Corolla bluish purple, annulate; tube ca. 1.3 cm; limb 3--3.5 cm wide; lobes obovate to oblong-obovate, deeply emarginate. Pin flowers: stamens ca. 3 mm above base of corolla tube; style ca. as long as calyx. Thrum flowers: stamens at middle of corolla tube; style ca. 4 mm. Capsule disintegrating at maturity. Fl. Jul.
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