Polygonum perfoliatum Mile-a-minute vine Mile-a-minute, http://www.nps.gov/plants/alien/fact/pepe1.htm Plant Conservation Alliance's Alien Plant Working Group site http://www.nps.gov/plants/alien/fact/pepe1.htm Plant Conservation Alliance Alien Plant Working Group Plant Conservation Alliance Alien Plant Working Group Mile-A-Minute Weed Plant Conservation Alliance Alien Plant Working Group Virginia Department of Conservation and Recreation Mile-a-minute Plant Conservation Alliance’s Alien Plant Working Group http://www.nps.gov/plants/alien/fact/pepe1.htm Plant Conservation Alliance