a close up of male catkins of goat willow salix caprea. flowering branch of pussy willow in the spring forest on a sunny day

background beautiful beauty bloom blooming blossom blue branch bright bud bunch caprea catkin catkins close closeup color colorful day delicate easter environment flora floral flower flowering flowers forest goat great green male natural nature outdoor plant pussy salix sallow season sky spring springtime sunlight sunny symbol tree vertical vivid willow yellow