Salix sepulcralis group Salix sepulcralis group The "Salix sepulcralis" group is a cultivar group containing all cultivars of hybrids between "Salix alba" and "Salix babylonica". The "sepulcralis" or × "sepulcralis" trees are sometimes referred to as white weeping willow or glaucous weeping willow in reference to the mixed appearance from the parent species. It was first described by L. Simonkai in 1890 from trees growing in Romania. The group contains both weeping and nonweeping cultivars, though the best-known of its cultivars is 'Chrysocoma', the most widely grown weeping tree.. Some of the cultivars are hybrids of "S. babylonica" var. "matsudana" 'Tortuosa' and have
Stigmella salicis a blotch, or if highly contorted with 'S' bends, a false blotch. The larvae feed on "Myrica gale", "Salix alba", "Salix atrocinerea", "Salix aurita", "Salix babylonica", "Salix caprea", "Salix cinerea", "Salix daphnoides", "Salix fragilis", "Salix lanata", "Salix pentandra", "Salix purpurea", "Salix repens", "Salix silesiaca", "Salix triandra" and "Salix viminalis". Mines on the narrow-leaved willows can be difficult to distinguish from those of "S. obliquella". The pupa is in a yellowish-brown cocoon spun in detritus and can be found in July and August, and from November through to April. "S. salicis" is found in Europe (except Iceland and Greece). Stigmella salicis