Three Rhexia species, R. aristosa, R. parviflora and R. salicifolia, are candidates for listing as endangered or threatened by the United States Fish and Wildlife Service. This current review of the rarity of Rhexia taxa was made through communication with botanists, literature review, and field and herbarium studies. R. parviflora is very rare while R. salicifolia and R. aristosa are restricted, yet more locally abundant.