Mexican petunia, Mexican bluebell , Britton's wild petunia, Katie Pink, Katie Ruellia, hardy petunia (Ruellia simplex)

Ruellia simplex is a species in the Ruellia genus. It is commonly known as Mexican petunia, Mexican bluebell , Britton's wild petunia, Katie Pink, Katie Ruellia, hardy petunia This name is accepted name for the species in the family Acanthaceae subfamily Acanthoideae, tribe Ruellieae, . . This species is found in Mexico, the Caribbean, and South America.