in spring, aspen blooms in nature populus tremula, populus pseudotremula

alba aments aspen background beautiful bloom blossom blue botanical branch catkin catkins close closeup cluster dicots dicotyl dicotyledonous earrings european flora flower flowering forest fresh inflorescence macro natural nature new pendulous plant pollen poplar populus pseudotremula quaking season silver soft spring springtime tree trees tremula tremuloides white wild wind