Herbs perennial, efarinose, glabrous, with few oblong bud scales at base. Petiole winged; leaf blade elliptic-lanceolate to lanceolate, 2--6 X 5--10 mm, base cuneate, margin entire to remotely denticulate, apex acute. Scapes 10--20 cm, elongating to 30 cm in fruit; umbels 2--10-flowered; bracts subulate, 3--10 mm. Pedicels unequal, 0.5--2 cm. Flowers heterostylous. Calyx narrow-campanulate, 6--8 mm, parted 1/3--1/2; lobes triangular, apex acute. Corolla dark wine-red, narrowly campanulate, 1.3--2.2 cm, glabrous inside, with a cylindric base nearly as long as calyx and an expanded campanulate upper part; limb 1.5--1.8 cm wide, puberulous; lobes elliptic to oblong, ca. 5 mm, margin entire, apex retuse or slightly retuse. Pin flowers: stamens ca. 3 mm above base of corolla tube; style ca. 8 mm. Thrum flowers: stamens 0.9--1.2 cm above base of corolla tube; style ca. 5 mm. Capsule ovoid, nearly as long as calyx. Fl. Jun.