Species: 

Polygonum aviculare

Common Name(s): 

prostrate knotweed, yard knotweed

Habitats Impacted: 

cropland/pastureland, disturbed/waste areas

Regions likely to be Impacted: 

PH, NE, NW, SE, SW

Present in Neighboring States?

AR, CO, KS, LA, MO, NM, TX

Currently known from Oklahoma?

Yes

Polygonum aviculare

Bruce Ackley, The Ohio State University, Bugwood.org

More Images:
What you should know!

Can damage turf grass. Can produce toxins that alter soil chemistry. A prolific seeder with a persistent seed bank. Possibly introduced as a seed contaminant.

Management information