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Cascade knotweed
Polygonum cascadense
Polygonum cascadense
Cascade knotweed Smartweed-Buckwheat Family
Polygonum cascadense Polygonaceae
common name
  Cascade knotweed
accepted scientific name
  Polygonum cascadense W.H. Baker
rules for finding collection records
  Polygonum cascadense (42)
family name
Image Author: ©2011 Brent Miller
Image License: CC BY-NC-ND
Image Source

Category: Wildflowers
Flowers: Five petals
Petal colors: color color
Flower size is about 0.15 inches
Leaf: Alternate
Plant Observed 3rd week of June thru end of September

Plant Showiness (36%)
Links to Plant Photos
Paul Slichter (7)
G.D.Carr (8)
Adam Schneider (1)
base map where plant found
mag select

Native Plant Status
native status map native status map native status map native status map
native Native
native Not Present