Clarkia rostrata is a species of flowering plant in the evening primrose family known by the common name beaked clarkia. Distribution The wildflower is endemic to California, where it is known from the California oak woodlands of the Sierra Nevada foothills around the Merced River in Mariposa County. Description Clarkia rostrata is an annual herb that grows erect to about in maximum height. The lance-shaped leaves are up to about long. The inflorescence bears opening flowers below closed, hanging flower buds. The reddish or purplish sepals stay fused together as the flower opens from one side. The fan-shaped petals are lavender-pink, lightening to nearly white at the bases, where it turns reddish purple. There are 8 stamens, some tipped with large lavender anthers and some with smaller, paler anthers. References External links Calflora Database: Clarkia rostrata (Beaked clarkia) Jepson Manual eFlora (TJM2) treatment of Clarkia rostrata UC CalPhotos gallery rostrata Endemic flora of California Flora of the Sierra Nevada (United States) Natural history of the California chaparral and woodlands Natural history of Mariposa County, California ~ Plants described in 1970