birch catkins on a branch closeup spring. birch bud alnus, alder, b tula, betulaceae on a nature background

abranch akidney alder alnus anearring backdrop background beautiful betulaceae birch bloom blossom botany branch bright brown bud catkin closeup dawn decorative ecology element environment evening first foliage forest fresh freshness grass kidney landscape leaf maple nature new outdoor plant season spring square sunlight sunlit sunshine tree trunk tula weather white