Polygonum aviculare  (common knotweed)

Photo of Polygonum aviculare by <a href="http://www.cdhs.us">Alfred Cook</a>

© Alfred Cook (Photo ID #8541)

Photographer's Submitted Details

Photo Location Alaska - Circle Hot Springs
Photographer Alfred Cook
Habitat waste area
Photo Date July 06, 2004
Upload Date November 20, 2006
Elevation (m) 270
Latitude
Longitude
Photo ID # 8541
Comments Leaves are variable. I have never seen the red blossoms open.