illustration of alnus rubra (red alder), a deciduous tree showing summer leaves and bare winter bran - 紅榿樹 幅插畫檔、美工圖案、卡通及圖標
antique botany plant illustration: alnus alnobetula, green alder, mountain alder - 紅榿樹 幅插畫檔、美工圖案、卡通及圖標