Taxon  Report   10892 
Fallopia sachalinensis  (F. Schmidt Petrop.) Ronse Decr.
Giant knotweed
Fallopia sachalinensis
© Nick Kurzenko
More photos from
CalPhotos / Calflora
Fallopia sachalinensis
© 2001 CDFA
Fallopia sachalinensis
© 2001 CDFA
Fallopia sachalinensis, a dicot, is a perennial herb that is not native to California. Cal-IPC rating: Moderate

Interactive Distribution Map

Observation Hotline
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point, line, or polygon

one or more occurrences
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Plant Characteristics
and Associations

Bloom Period
Fallopia sachalinensis
© 2001 CDFA
Genus: Fallopia
escaped cultivar
Wetlands: Occurs usually in non wetlands, occasionally in wetlands
Name Status:
Accepted by JEF
PLANTS accepted name: Polygonum sachalinense
Alternate Names:
(according to)

ICPN: Polygonum sachalinense
ICPN: Reynoutria sachalinensis
More information about  Fallopia sachalinensis
Photos on Google Images
Jepson eFlora

Records from the Consortium of California Herbaria


Search (Flora of North America)

website references from Google

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]. 2018. Berkeley, California: The Calflora Database [a non-profit organization].
Available:   (Accessed: Sep 19, 2018).

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