"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, China 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.