About Cuphea viscosissima Jacq.
Cuphea viscosissima Jacq., commonly called waxbush, blue waxweed, clammy cuphea, and ambiguously referred to as "tarweed", is an herbaceous plant belonging to the loosestrife family. It is native to the eastern United States, where it grows most often in open, rocky calcareous habitats. It is the most common and widespread Cuphea species in the United States. This species is well known for its sticky stems. It blooms with purple-red flowers in late summer, and its flowers attract both butterflies and hummingbirds. Cuphea viscosissima is morphologically similar to Cuphea lanceolata, a species that occurs in Mexico. It can be told apart from Cuphea lanceolata by its smaller flowers.