Polygonum pensylvanicum

Pennsylvania Smartweed


Pinkweed, Purple-head

ID Characteristics

Life cycle: Summer annual
Growth Habit: Prostrate
Propagation: Seed
Leaf Margin: Smooth
Leaf Hairs: Sparse
Leaf Structure: Lanceolate to elliptic or egg-shaped
Leaf Arrangement: Alternate
Root Type: Shallow taproot with fibrous roots
Flower Color: Bright pink to white


Similar Species

Herbicidal Control Options

  • Preemergence: Selective control option not available
  • Post Emergence: Chlorsulfuron, Florasulam, Sulfometuron

Please note: one or more of these active ingredients may exist in combination-type brand name products. Any material used for herbicidal control of any plant may vary in efficacy. Please read the full disclaimer on herbicide usage.