A good-sized clump of this invasive plant
by Todd_Boland Nov 1, 2004 10:34 AM
Each small flower has one seed within.
by Sarahskeeper Oct 11, 2007 4:21 PM
Photo taken March 2007 .. New growth
by Apr 4, 2007 2:34 AM
Japanese Knotweed in British Columbia, Canada, September 1997
by kennedyh Jul 30, 2003 9:27 AM
Japanese Knotweed in British Columbia, Canada, September 1997
by kennedyh Jul 30, 2003 9:27 AM
Contained in a planter but will still spread by seed.
by mgarr Jul 20, 2005 10:54 PM
Polygonum cuspidatum (Japanese Knotweed)
by Equilibrium Jun 17, 2007 3:35 AM
Polygonum cuspidatum (Japanese Knotweed)
by Equilibrium Jun 16, 2007 3:50 AM
Polygonum cuspidatum (Japanese Knotweed)
by Equilibrium Jun 16, 2007 3:50 AM
Polygonum cuspidatum (Japanese Knotweed)
by Equilibrium Jun 16, 2007 3:50 AM
This is what the plant looks like, only 1 week after emerging from the ground from the previous season.
by giftgas May 5, 2009 11:00 PM
Taken in springtime
by quatske May 6, 2009 2:50 PM
Springtime 2009
by quatske May 6, 2009 2:50 PM
Photo taken May 2011 @ Mustila Arboretum, Finland
by Jun 21, 2011 7:10 PM
Showing her Fall colors!
by kudrick Sep 25, 2011 8:16 AM
Knotweed coming up like gangbusters in South Boston. Yikes.
by ignote May 16, 2016 3:07 PM
