Herbs perennial. Basal bud scales ovate to oblong, 2--5 cm, efarinose. Leaves forming a rosette; petiole winged, 1--3 X as long as leaf blade; leaf blade ovate-deltoid, 2--10 X 2--7 cm, efarinose, sometimes puberulous abaxially, base cordate to subsagittate, margin irregularly coarse dentate, apex acute. Scapes 10--20 cm, elongating to 45 cm in fruit, scarcely farinose toward apex; umbels 2--12-flowered; bracts acuminate-subulate from broad base, 5--10 mm. Pedicel 1--3 cm, scarcely farinose. Flowers heterostylous. Calyx tubular-campanulate, 7--10 mm, scarcely farinose, parted slightly below middle to 2/3, 5-ribbed; lobes lanceolate, apex acute. Corolla light purple to deep purple, sometimes pale blue or white; tube 1--1.3 cm; limb 2--2.5 cm wide; lobes obovate-oblong, emarginate. Pin flowers: stamens near middle of corolla tube; style ca. as long as tube or slightly exserted. Thrum flowers: stamens toward apex of corolla tube; style ca. as long as calyx. Capsule discoid, shorter than calyx, disintegrating at maturity. Fl. May.
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