Distribution by County   8495    
Porophyllum ruderale  (Jacq.) Cass.
Yerba porosa
Porophyllum ruderale, a dicot, is an annual herb that is not native to California.
Record Count by County

Los Angeles: 2 Orange: 3 Riverside: 3 San Diego: 1

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: 07/06/2022).