willow, mountain willow, tree willow, osier, sallow, victorian botanical illustration - mountain willow 幅插畫檔、美工圖案、卡通及圖標
salix fragilis, salix caprea ,crack willow and brittle willow - mountain willow 幅插畫檔、美工圖案、卡通及圖標雕刻圖像, 植物學