Taxon  Report   10891 
Fallopia japonica  (Houtt.) Ronse Decr.
Japanese knotweed
Fallopia japonica , a dicot, is a perennial herb that is not native to California.

The California Invasive Plant Council classifies its potential impact on native ecosystems as moderate - ALERT (plant profile / CalWeedMapper ).

 

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Bloom Period
Fallopia japonica
© 2006 Dr. Amadej Trnkoczy
Fallopia japonica
© 2011 Louis-M. Landry
Fallopia japonica
© 2005 Louis-M. Landry
Community: escaped cultivar
Wetlands:Usually occurs in non wetlands, but occasionally found in wetlands [U.S. Fish & Wildlife Service.]
Family: POLYGONACEAE  
Genus: Fallopia
Add an Observation of  Fallopia japonica
Name Status:
Accepted by TJM2
PLANTS: accepted name: Polygonum cuspidatum
Other Names:
(according to)

TJM2: Polygonum cuspidatum
TJM2: Reynoutria japonica
 Information about  Fallopia japonica  from other sources:
USDA PLANTS Profile (POCU6)

Photos on CalPhotos / Flickr / Google Images

website references on Google

Jepson eFlora (TJM2)

Records from the Consortium of California Herbaria

Search efloras.org (Flora of North America)

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]. 2014. Berkeley, California: The Calflora Database [a non-profit organization].
Available: http://www.calflora.org/   (Accessed: Oct 20, 2014).

The information on this page comes from diverse sources. None of the links are sponsored.

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