''Coincya monensis'' subsp. ''recurvata'', the star mustard or wallflower cabbage, is a subspecies of '' Coincya monensis''. It is found in eight U.S. states. It may have been introduced to the U.S. as the

Isle of Man cabbage ''Coincya monensis'' subsp. ''monensis'', the Isle of Man cabbage, is a species of plant in the family Brassicaceae that is found in coastal habitats on the west of the island of Great Britain (from north Devon to Kintyre) and around the coasts o ...

and subsequently evolved through the

founder effect In population genetics, the founder effect is the loss of genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. It was first fully outlined by Ernst Mayr in 1942, using ...

and geographic isolation into a new subspecies.

References

Plant subspecies monensis subsp. recurvata Taxobox trinomials not recognized by IUCN {{Brassicales-stub