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Polygonum douglasii
Douglas' knotweed Smartweed-Buckwheat Family
Polygonum douglasii Polygonaceae
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common name
  Douglas' knotweed
accepted scientific name
  Polygonum douglasii Greene
rules for finding collection records
  Polygonum douglasii (4272)
  exclude Polygonum douglasii austiniae
  exclude Polygonum douglasii austiniae
  exclude Polygonum douglasii engelmannii
  exclude Polygonum douglasii johnstonii
  exclude Polygonum douglasii johnstonii
  exclude Polygonum douglasii majus
  exclude Polygonum douglasii microspermum
  exclude Polygonum douglasii nuttallii
  exclude Polygonum douglasii spergulariiforme
family name
  Polygonaceae
Image Author: ©2010 Keir Morse
Image License: CC BY-NC-SA
Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color color color
Flower size is .1 to .2 inches
Leaf: Alternate
Plant Observed beginning of June thru 1st week of October

How Likely at this Location (100%)
Name Match (100%)
Plant Showiness (36%)
base map where plant found
mag select

Forest
Meadow
Riparian
Disturbed
Rocky
Grassland
Desert
Brush
grid lines base