Salix babylonica but beyond China, it has not generally been as successfully cultivated as some of its hybrid derivatives, being sensitive to late-spring frosts. In the more humid climates of much of Europe and eastern North America, it is susceptible to a canker disease, willow anthracnose ("Marssonina salicicola"), which makes infected trees very short-lived and unsightly. "Salix babylonica" (Babylon willow) has many cultivars, including: Various cultivars of "Salix matsudana" (Chinese willow) are now often included within "Salix babylonica", treated more broadly, including: Yet other weeping willow cultivars are derived from interspecific "Salix" hybrids, including "S. babylonica" in their parentage. The most widely
Salix hookeriana Salix hookeriana Salix hookeriana is a species of willow known by the common names dune willow, coastal willow, and Hooker's willow. "Salix hookeriana" is a shrub or tree growing up to tall, sometimes forming bushy colonial thickets. The leaves are up to 11 cm long, generally oval in shape, wavy along the edges, and hairy to woolly in texture with shiny upper surfaces. The inflorescence is a catkin of flowers up to 9 cm long, with the female catkins growing longer as the fruits develop. This willow may hybridize with similar species. The Latin specific epithet "hookeriana" refers to William