Pontia is a genus of pierid butterflies. This species is the smallest North American pierid. The Pierinae are a large subfamily of pierid butterflies. A few species are white and resemble pierid butterflies (e.g. "Macrosoma napiaria"). Most pierid butterflies are white, yellow, or orange in coloration, often with black spots. A pierid butterfly, "Hebomoia glaucippe", is a frequent visitor to this plant.