Fallopia japonica gallery
One of the most invasive plants in the world, this weed was introduced to the US in the 1970s from Asia
Japanese Knotweed Gallery
Leaves
Spring Creek Canyon (Centre Co)
by Maria G. Pavlova on 05/15/2017
Plant in flower
Landingville (Schuylkill Co)
by Paul Nale on 08/05/2024
Knotweed flowers
Bald Eagle Preserve (Centre Co)
by Maria G. Pavlova on 08/30/2020
Flowers & leaves
Matternville (Centre Co)
by Maria G. Pavlova on 09/05/2012
Leaf
Matternville (Centre Co)
by Maria G. Pavlova on 09/05/2012
The last flowers
Spring Creek (Centre Co)
by Maria G. Pavlova on 09/07/2019
Forming fruits
Bald Eagle Preserve (Centre Co)
by Maria G. Pavlova on 09/13/2016
Autumn leaves
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Bald Eagle Preserve (Centre Co)
by Maria G. Pavlova on 10/09/2022
Growing in the woods
Beechwood Farms (Allegheny Co)
by Maria G. Pavlova on 10/11/2019
Fruits & leaves
