Calflora, a 501c3 non-profit
Distribution by County   5367    
Marah watsonii  (Cogn.) Greene
Taw Man-Root
Marah watsonii is a perennial herb or vine that is native to California, and endemic (limited) to California.
Record Count by County

Amador: 2 Lake: 9 Plumas: 1 Tehama: 2
Butte: 49 Mariposa: 2 Santa Clara: 1 Trinity: 2
Calaveras: 3 Mendocino: 1 Shasta: 22 Tuolumne: 4
Colusa: 16 Napa: 18 Sierra: 1 Yolo: 6
El Dorado: 9 Nevada: 16 Solano: 17 Yuba: 2
Fresno: 1 Placer: 12 Sonoma: 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]. 2024. Berkeley, California: The Calflora Database [a non-profit organization]. Available: https://www.calflora.org/   (Accessed: 11/21/2024).