|Scientific Name||Persicaria amphibia (Polygonum amphibium)||USDA PLANTS Symbol||POAME|
|Common Name||Water Knotweed, Water Smartweed||ITIS Taxonomic Serial No.||823854|
Life zones and habitat: Plains to subalpine (3500 to 10700 ft.); lake edges; amphibious plant may occur in water or on land in wet areas.
Plant: Terrestrial plants have erect to decumbent and densely hairy stems and leaves with sharp-pointed tipped leaf blades; aquatic plants have hairless stems and blunt-tipped leaves.
Leaves: Alternate, ovate-lanceolate to elliptic, leathery green stem leaves with tips as above; 3/4 to 6 inches long and 3/8 to 2-3/8 inches wide.
Inflorescence: Terminal racemes 3/8 to 6 inches long of many small flowers with bright pink to red tepals.
Bloom Period: Summer.
References: "Flora of Colorado" by Jennifer Ackerfield and US Forest Service article by Walter Fertig.
|BONAP Distribution Map
Map Color Key
© Tom Lebsack 2022
Banner photo: Ten Mile Range and Rhodiola integrifolia (King’s Crown) in Summit County