Calflora, a 501c3 non-profit
Distribution by County   7641    
Sium suave  Walter
Hemlock water parsnip,   Hemlock waterparsnip
Sium suave is a perennial herb that is native to California, and also found elsewhere in North America and beyond.
Record Count by County

Contra Costa: 5 Mariposa: 2 San Joaquin: 3 Trinity: 3
El Dorado: 2 Mendocino: 6 Santa Barbara: 1 Tulare: 1
Inyo: 1 Mono: 3 Santa Clara: 1
Lassen: 1 Napa: 2 Solano: 12
Madera: 2 Plumas: 14 Tehama: 2

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).