lesser celandine or pilewort flowers (ficaria verna or ranunculus ficaria

pilewort buttercup family protoanemonin garden flower plant perennial noxious weed poisonous ranunculaceae flowering fig herbaceous stamens bloom meadow spring time wild flowers flowerhead springtime blooming wildflower ficaria verna nature fresh lesser celandine freshness yellow head stamen flora europe ranunculus blossom european plants macro close