Calflora
Taxon  Report   10892    
Fallopia sachalinensis  (F. Schmidt Petrop.) Ronse Decr.
Giant knotweed
Fallopia sachalinensis, a dicot, is a perennial herb that is not native to California.
Cal-IPC rating: Moderate
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Observation Search
(126 records)
one or more occurrences
within a 7.5-minute quadrangle

Bloom Period
Family: Polygonaceae  
Genus: Fallopia

Wetlands: Occurs usually in non wetlands, occasionally in wetlands

Communities: escaped cultivar

Name Status:
Accepted by JEF
Alternate Names:
JEFPolygonum sachalinense
JEFReynoutria sachalinensis
JEFTiniaria sachalinensis
More information about  Fallopia sachalinensis

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: https://www.calflora.org/   (Accessed: 05/21/2022).