Clarkia

Clarkia is a genus within the flowering plant family Onagraceae. Over 40 species are currently classified in Clarkia; almost all are native to western North America, though one species (Clarkia tenella) is native to South America.

Clarkias are typically annual herbs, growing either prostrate or erect to a height of less than 2 metres. Their leaves are small and simple, from 1 to 10 cm in length depending on the species. Their flowers have four sepals and four petals, usually white, pink, or red, and are often spotted or streaked. Their fruit are elongated, cylindrical pods, usually 4-grooved or 8-grooved, and when mature they hold many tiny, cubical seeds.