Bog Pimpernel

Lysimachia tenella, synonym Anagallis tenella, known in Britain as the bog pimpernel, is a low growing perennial plant found in a variety of damp habitats from calcareous dune slacks to boggy and peaty heaths in western and southern Europe and Northwest Africa. In the United Kingdom it is mostly restricted to the western half of the country, although it was more common in the east before land drainage and intensification of farming in that area.