Salix serissifolia f. pendula Okuhara ex T.Shimizu
Salix yoshinoi Koidz.
Salix pierotii, the Korean willow, is a species of
willow native to northeast China, far eastern Russia, the Korean peninsula and Japan.[3] They are shrubs or trees reaching 8m. Because their twisted wood is not good for timber or making tools, in Japan Salix pierotii trees are used to demarcate property lines between farms.[4]