Willow are very cross-compatible, and numerous hybrids occur, both naturally and in cultivation. A well-known ornamental example is the weeping willow ("Salix × sepulcralis"), which is a hybrid of Peking willow ("Salix babylonica") from China and white willow ("Salix alba") from Europe. The hybrid cultivar 'Boydii' has gained the Royal Horticultural Society's Award of Garden Merit. Numerous cultivars of "Salix" L. have been developed and named over the centuries. New selections of cultivars with superior technical and ornamental characteristics have been chosen deliberately and applied to various purposes. Most recently, "Salix" has become an important source for bioenergy production and for
Salix pedicellata Ethiopia. Salix pedicellata Salix pedicellata is a species of willow. It is a shrub or small tree to about 6–8 m tall, native around the Mediterranean Sea from Portugal to Lebanon and Syria in the north and from Morocco to Tunisia in the south. "Salix canariensis" may be treated as a subspecies of "S. pedicellata". "Salix pedicellata" is very variable in appearance. It forms a shrub or small tree up to 6–8 m tall. Its trunk may be up to 1.4 m, but is usually shorter. Its twigs are dark brown, initially with short hairs (tomentose), later smooth (glabrous). If