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 jepsonii measuring no more than 2 centimeters long, and female catkins reaching up to 6 centimeters in length. Its bloom period is June. Salix jepsonii Salix jepsonii is a species of willow known by the common name Jepson's willow. it is named for renowned California botanist Willis Linn Jepson. It is endemic to California, found in the Klamath Mountains and throughout the Sierra Nevada. It grows along rivers and streams in high mountain habitat, between in elevation. "Salix jepsonii" is a shrub growing tall, sometimes forming colonial thickets. The lance-shaped leaves may grow over 10 centimeters long. They are hairy when