IPMP3.0, Oregon State University, Copyright 2000

Prostrate Knotweed
Polygonaceae (Polygonum aviculare)


Biology and Management

Registered Herbicides

[Return to weed Identification]

[Return to Weed Management]


Prostrate Knotweed Flowers (link to large image)

Prostrate Knotweed Mature Plant (link to large image)

Prostrate Knotweed Flowers Prostrate Knotweed Mature Plant

Prostrate Knotweed is an annual.  Prostrate growing habit with multiple stems 1 to 3 feet in length. Stems are swollen at each branch. Leaves are slender and hairless with papery sheath at leaf base. Clusters of small, pink flowers are produced in leaf axils.





This section contains information on identification of the different life stages of Prostrate Knotweed.  Select Biology and Management from the Contents Menu for more information on the biology and management, or select Registered Herbicides for the herbicides that are registered to control this weed in mint.