Lysimachia maxima (R. Knuth) H. St. John

Lysimachia maxima (R. Knuth) H. St. John. Lysimachia remyi subsp. maxima is a rare species of flowering plant in the family Primulaceae known by the common name Pelekunu Trail yellow loosestrife. It is endemic to Hawaii, where there are only two small populations remaining on the island of Molokai. It is federally listed as an endangered species of the United States.