Polygonum amphibium - Water Smartweed

  Family: Polygonaceae Growth Form: Forb/Herb
  Hydro Zone: -12� to �3� NWC: OBL
  C-value: 4 Max Height: 3�
  Hardiness Zones: -23dF Light: Thrives in full sun
  Bloom: 10 June- 1 Oct Collect Seed: Fall
  Similar Species:
  Distinguishing Characteristics: Aquatic-adapted; Floating branches with alternate, smooth, eliptical leaves with rounded tips; Flowers arranged in oval/connical cluster 1/5-4 cm.
Early Growth

Mid Growth

Full Growth



Distinguishing Characteristic