willows or sallows, and osiers, form the genus salix, around 400 species[

willows sallows osiers form genus salix 400 species deciduous trees shrubs found moist soils cold temperate regions northern hemisphere angiosperm angiospermae background beautiful beauty biological biology blooming blossom blue botanical botany branch bright cultivar deciduous environment flora flower foliage forest green growth horticultural horticulture landscape leaf leaves natural nature ornamental park peking plant pollen salicaceae salix season sky spring summer sun sunlight sunny tree trees willow wood woods