Phlox nivalis Lodd. ex Sweet

Phlox nivalis Lodd. ex Sweet. Phlox nivalis is a species of flowering plant in the Polemoniaceae family with the common names trailing phlox and pineland phlox. It is native to the southeastern United States, Texas, Michigan, and Utah. One subspecies of this plant, Phlox nivalis subsp. texensis, the Texas trailing phlox or Texan phlox, is a rare plant federally listed as an endangered species of the United States. The subspecies is endemic to Texas, where there are populations in three counties. At one time, the subspecies was thought to be extinct. It was rediscovered in 1972.