salix purpurea purple willow or osier is a species of salix native to most of europe. purple willow catkin, salix purpurea

salix willow osier catkin rural outdoor green viminalis nature background spring growth garden leaf plant biology botany natural view vista landscape willows of europe energy biofuel biomass sunny agriculture season ecology purpurea in bloom harvest stem plantation ecological production alternative bio row shrub industry purple mulch stump catkins copse dendrology purpleosier