Polygonaceae -  Knotweed Family
 

Members of the Polygonaceae
(click on a name below to see an image of the species)
 

• Polygonum cuspidatum - Japanese Knotweed
• Polygonum sagittatum - Arrowleaf Tearthumb
• Polygonum punctatum - Water Smartweed
• Rumex spp. - Dock