Shrubs or small trees, up to 5 meters high; Bark is grayish brown or gray. Branchlets, inflorescence axes, pedicels, bracts, calyx, both surfaces of young leaves and petioles are hairless and densely glandular hairy. Branchlets are thick and sparsely lenticelled. The leaves are leathery or thickly papery, oval to kidney-shaped, usually wider than long, 2- 14 cm long and 2- 15 cm wide, with a short cusp at the apex to a long tapering or acute point, a heart-shaped base, a truncated to nearly round shape, or a wide wedge shape, dark green at the top and light green at the bottom; The leaves on the sprouting branches are often long oval, the apex is gradually pointed, and the base is truncated to a wide wedge; Petiole length 1-3 cm.

Panicle erect, sprouted from lateral buds, nearly spherical or oblong, 4- 16 cm long and 3-7 cm wide; Pedicel 0.5-3 mm long; Calyx is about 3 mm long, and calyx teeth are acuminate, acute or obtuse; Corolla purple, length 1. 1-2 cm, corolla tube cylindrical, length 0.8- 1.7 cm, lobes spreading at right angles, oval, oval to obovate, 3-6 mm long and 3-5 mm wide, and the apex is slightly pocketed or not; Anthers yellow, located 0-4 mm from the throat of corolla tube.

The fruit is obovate-elliptic, ovoid to oblong, 1- 1.5 cm long, 4-8 mm wide, and the apex is long and tapering, smooth. The flowering period is April-May, and the fruiting period is June 6- 10/October.