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 atrocinerea Salix atrocinerea Salix atrocinerea, commonly called grey willow or large gray willow, is a species of willow. It is a bush or small tree up to tall. As a pioneer species of willow, it quickly colonizes poor soils. The grey willow distribution is mostly Atlantic from Western Europe and North Africa to some Mediterranean islands, and in North Africa. Naturally growing in Britain, France, Belgium, Spain, Portugal, Morocco, Tunisia, it is very common in the Iberian Peninsula, and is also found in Corsica. The species hybridizes readily with other species of willow and many hybrids have been identified. It flowers