Calflora, a 501c3 non-profit
Distribution by County   13358    
Fallopia ×bohemica  (Chrtek & Chrtkova) J. P. Bailey
Bohemian knotweed
Fallopia ×bohemica is a perennial herb that is not native to California.
There is a high risk of this plant becoming invasive in California according to Cal-IPC.
Record Count by County

Humboldt: 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:   (Accessed: 07/21/2024).