Salix babylonica a gold-yellow in autumn. The flowers are arranged in catkins produced early in the spring; it is dioecious, with the male and female catkins on separate trees. "Salix babylonica" was described and named scientifically by Carolus Linnaeus in 1736, who knew the species as the pendulous-branched ("weeping") variant then recently introduced into the Clifford garden in Hartekamp in The Netherlands. Early Chinese cultivar selections include the original weeping willow, "Salix babylonica" 'Pendula', in which the branches and twigs are strongly pendulous, which was presumably spread along ancient trade routes. These distinctive trees were subsequently introduced into England from Aleppo in
Salix magnifica Salix magnifica Salix magnifica is a species of willow in the family Salicaceae. It is endemic to Sichuan in southwestern China, where it grows at high altitudes of 2,100–3,000 m above sea level. It is threatened by habitat loss. It is a deciduous shrub or small tree growing to tall. The leaves are alternate, 10–25 cm long and 7–12 cm broad, with an entire margin; they are green above, and glaucous below, with red veins and petiole. The flowers are produced in catkins in late spring after the new leaves appear; it is dioecious, with male and female catkins on