The "Miyama-gamazumi" (Viburnum wrightii) belongs to Caprifoliaceae (the Honeysuckle family). It is a small deciduous tree that is native throughout Japan, as well as the Korean Peninsula and southern Sakhalin. This tree grows in montane forests or forest edges, and it can reach 2-5 m in height. The leaves are broad-obovate to obovate-round, opposite, glossy and almost glabrous on adverse sides. The petioles are 10-20 mm long, often tinged reddish, and bear long silky-hairs sparsely. The small white flowers bloom in the corymbs from May to June. The fruits are globose drupes and ripen red in fall.