Salix babylonica Salix babylonica Salix babylonica (Babylon willow or weeping willow; ) is a species of willow native to dry areas of northern China, but cultivated for millennia elsewhere in Asia, being traded along the Silk Road to southwest Asia and Europe. "Salix babylonica" is a medium- to large-sized deciduous tree, growing up to tall. It grows rapidly, but has a short lifespan, between 40 and 75 years. The shoots are yellowish-brown, with small buds. The leaves are alternate and spirally arranged, narrow, light green, 4–16 cm long and 0.5–2 cm broad, with finely serrate margins and long acuminate tips; they turn
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