Ficaria verna. Ficaria verna wild flower also known as lesser celandine, pilewort or fig buttercup. | CanStock
Fig Buttercup or Lesser Celandine or Pilewort Flowers Photographs
Deceptive little buttercup is foe, not friend - Maryland Invasive Species Council
Ficaria verna (formerly Ranunculus ficaria L.), known as Lesser Celandine or Pilewort in the UK. In North America, it is known as Fig Buttercup Stock Photo - Alamy
A non-native plant with yellow flowers is invading NC | Raleigh News & Observer