Cuphea aspera is a species of flowering plant in the loosestrife family known by the common names tropical waxweed and Chapman's waxweed. It is endemic to Florida in the United States, where it is limited to Gulf and Franklin Counties on the central Florida Panhandle. It has likely been extirpated from Calhoun County.This perennial herb grows up to about 40 centimeters tall from a woody, branching rootstock. The stems are coated in white hairs and purplish glandular hairs.