About Salix schwerinii E.L.Wolf
Salix schwerinii, commonly called the narrow-leaf willow, is a willow species that is native to northeastern Asia, with a native range stretching from Kolyma to northeastern China. It grows as either a shrub or a tree, reaching a height of 10 to 15 meters (33 to 49 feet). It produces long, exceptionally narrow leaves, and is both similar to and closely related to Salix viminalis.