Distribution by County   11821    
Marah horrida  (Congdon) Dunn
Sierra man-root
Marah horrida, a dicot, is a perennial herb or vine that is native to California, and endemic (limited) to California.

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: 06/26/2022).