Japanese knotweed

Japanese knotweed

 

 

 

 

 

 

 

 

 

 

 

 

 

More photos…

Polygonum cuspidatum


Taxonomy

Family:

Polygonaceae (buckwheat)

 

Subfamily:

Polygonoideae

 

Tribe:

Polygoneae


Nativity

Native to Japan, Korea, Taiwan, and China. Introduced and naturalized in the United States and Canada.

Status

 

Habitat

Moist to moderate moisture. Woods, fence rows, roadsides. Full to partial sun.

Flowering

Late summer to early fall

Flower Color

White to greenish

Height

4 to 10


Identification

 

 
Similar
Species

 


Range Range Map   Sources: 2, 3, 7.
 
Sightings  

Wood-Rill SNA


Comments

 


Images  
Plant Japanese knotweed            
               
Leaves Japanese knotweed   Japanese knotweed        
               
Stem Japanese knotweed            

Synonyms

Fallopia japonica

Pleuropterus cuspidatus

Pleuropterus zuccarinii

Polygonum cuspidatum var. compactum

Polygonum zuccarinii

Reynoutria japonica

 
Common
Names

fleeceflower

Japanese knotweed

Mexican bamboo


 

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