![](/media/2ixcuqdq/polygonum-pensylvanicum-flower006.jpg?anchor=center&mode=crop&width=550&height=470&rnd=132916687511470000)
Photo by Dan Tenaglia, courtesy www.xidservices.com
![](/media/v2enikx0/polygonum-pensylvanicum-inflorescence008.jpg?anchor=center&mode=crop&width=550&height=470&rnd=132916687554900000)
Photo by Dan Tenaglia, courtesy www.xidservices.com
![](/media/utrk1yef/polygonum-pensylvanicum-plant002.jpg?anchor=center&mode=crop&width=550&height=470&rnd=132916687609900000)
Photo by Dan Tenaglia, courtesy www.xidservices.com
![](/media/nmjdgfbm/pennsylvania-smartweed-tef.jpg?anchor=center&mode=crop&width=550&height=470&rnd=133586049690300000)
![Pennsylvania smartweed](/media/jrgpqqy0/pa-smartweed.jpg?anchor=center&mode=crop&width=550&height=470&rnd=133586050189200000)
George Weigel
Persicaria pensylvanica (syn. Polygonum pensylvanicum)
Other Names: pinkweed, Pennsylvania knotweed, pinweed, hearts-ease, purple head, swamp persicary
Leaf Type: Broadleaf
Flowers: Pink, white
Leaves: Pointed leaves with smooth edges; some hair
Life Cycle: Summer annual
For Gardens
For Gardens