Pourthiaea is a genus of plants in the rose family (Rosaceae).[1]
Its native range is East Asia and Indo-China. It is found in the regions of Assam, Bangladesh, (north-central, south-central and southeastern) China, East Himalaya, Japan, Korea, Laos, Myanmar, Taiwan, Thailand, Tibet and Vietnam.[1]
It was later introduced into the American states of Connecticut, Delaware, District of Columbia, New Hampshire, New Jersey, New York, Ohio, Pennsylvania and Washington.[1]
The genus name of Pourthiaea is in honour of J. A. Pourthié (1830–1866), a French clergyman and also missionary in Korea.[2] It was first described and published in Nouv. Arch. Mus. Hist. Nat. Vol.10 on page 146 in 1874.[1]
According to Kew;[1]