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 delnortensis Salix delnortensis Salix delnortensis is a species of willow known by the common name Del Norte willow. The plant is endemic to the Klamath Mountains of northwestern California and southwestern Oregon. It is named for Del Norte County, California, its primary distribution locale. It is also endemic to serpentine soils. It grows in riparian zone and California mixed evergreen forest habitats, between . "Salix delnortensis" is a shrub growing tall. It forms thickets, sometimes quite large, some of which are made up of clones of one individual. The shrub has many branches, which are very brittle. The young twigs are