Calflora, a 501c3 non-profit
Distribution by County   5894    
Oenothera deltoides  Torr. & Frém.  ssp. piperi  (Munz) W. M. Klein
Piper's desert lantern,   Piper's evening primrose
Oenothera deltoides ssp. piperi is an annual herb that is native to California, and found only slightly beyond California borders.

Suggested Citation
Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria. [web application]. 2022. Berkeley, California: The Calflora Database [a non-profit organization]. Available:   (Accessed: 09/25/2022).