Deciduous shrub 1.5-2 m high by nearly or completely bald young twigs. Leaves 2.5-5.5 cm long, ovate with rounded top and focused at the base, bright green and bare except for the main vein on the underside. More or less serrated leaf edge. Flowers in clusters of two or four at the end of short and leaves grown arrows, forming a loose inflorescence. Bracts five, elongated, reddish to 7 mm long. Corolla 1.5-2.5 cm long, slender tube with a funnel-shaped, creamy white with orange spots in the throat. Flowers in May and June.
Is endemic in Japan: Honshu south of Tohoku, Shikoku and Kyushu.
Grows in open, sunny boshellingen from sea level to 1200 meters.
Introduced in 1879 by Charles Maries for the Veitch Nurseries.
The species is rarely cultivated.