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
Coleophora lusciniaepennella Coleophora lusciniaepennella Coleophora lusciniaepennella is a moth of the Coleophoridae family. It is found in most of Europe, except the Iberian Peninsula, the Mediterranean islands and most of the Balkan Peninsula and Russia. It occurs in forest-steppe biotopes. The wingspan is 10-13,5 mm. The moth flies from June to July depending on the location. The larvae feed on "Myrica gale", "Populus tremula", "Salix alba", "Salix aurita", "Salix babylonica", "Salix caprea", "Salix cinerea", "Salix dasyclados", "Salix fragilis", "Salix glabra", "Salix pentandra", "Salix repens", "Salix triandra" and "Salix viminalis". They create a bivalved composite leaf case of 8–10 mm. It is rather