Thuja koraiensis ‘Glauca Prostrata’

Thuja koraiensis, the Korean arborvitae, is a species of conifer in the cypress family, Cupressaceae, native to Korea and the extreme northeast of China (Changbaishan). Its current status is poorly known; the small population in China is protected in the Changbaishan Nature Reserve, as is the small population in Soraksan Nature Reserve in northern South Korea, but most of the species' range in North Korea is unprotected and threatened by habitat loss.