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 lemmonii edges, and hairless and waxy or slightly hairy. The inflorescence is a stout catkin of flowers a few centimeters long, the female catkins lengthening to 6 or 7 centimeters as the fruits develop. This willow sometimes hybridizes with "Salix geyeriana", to which it is closely related. This shrub is commonly used in revegetation projects in its native range, where it is useful for stabilizing eroded riparian habitat. Salix lemmonii Salix lemmonii is a species of willow known by the common name Lemmon's willow, named after J.G. Lemmon. It is native to western North America from British Columbia to California to