Large evergreen shrub, 3-5 meters high, glabrous. Branchlets grayish brown or grayish, cylindrical, sparsely round or rectangular lenticels, cylindrical young branches, slightly angular, slightly compressed at nodes. Leaf blade is thick leathery, oval or broadly ovoid, thin ovoid, 5-8(- 10) cm long and 2.5-5 cm wide, with sharp or tapering apex, wedge-shaped base, wide wedge-shaped to round, flat or slightly curled leaf margin, dark green and bright upper surface, inconspicuous glandular spots on lower surface in yellow-green color, hairless on both sides, and concave midvein on upper surface. The petiole is 0.5- 1.3 cm long, covered with deep and narrow furrows and hairless. Panicle tower-shaped, glabrous, 5- 17 cm long, several times wider or slightly shorter than long; Inflorescence axis and branch axis have horns, and the second branch is 9 cm long; Pedicel extremely short, not more than 2 mm long; Bracteoles lanceolate, long 1.5- 10 mm; Calyx length 1.5- 1.8 mm, apex nearly truncated or irregularly toothed; Corolla 5-6 mm long, corolla tube 3-3.5 mm long, lobes nearly equal or slightly shorter, 2.5-3 mm long, slightly inflexed at the top, helmet-shaped; Stamens extend out of corolla tube, filaments are almost as long as corolla lobes, and anthers are oblong and 1.5-2 mm long; Style 3-5 mm long, slightly protruding from corolla tube, stigma rod-shaped, tip shallowly 2-lobed. The fruit is oblong or oval, 8 8- 10/0mm long and 6-7mm wide, upright, purple-black, covered with white powder. Flowering in June and fruiting in 165438+ 10.