Swamp Smartweed – Native Plant of the Day 10/02/2017
Photo from 9/1/2005. Location: Boundary Waters Canoe Area Wilderness, MN.
More photos & info at the Persicaria amphibia detail page.
Dotted Smartweed, a native species, has been added to the USWildflowers database (12/22/2012.) Scientific name is Persicaria punctata (formerly Polygonum punctatum.) It is also known by the common names Dotted Knotweed, and Water Smartweed. Photo below was taken at the Flintstone Nazarene Church, Walker County, GA , on Sep 25, 2012. Go to the Dotted Smartweed detail page for more photos and information.
Swamp Smartweed, a native knotweed species, has been added to the USWildflowers.com database. Scientific name is Polygonum amphibium. This plant goes by the Common names Water Knotweed, Swamp Smartweed, Water Smartweed.