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Polygonum polygaloides
milkwort knotweed Smartweed-Buckwheat Family
Polygonum polygaloides Polygonaceae
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common names
  milkwort knotweed
  close-flowered knotweed
  polygala knotweed
accepted scientific name
  Polygonum polygaloides Meisn.
rules for finding collection records
  Polygonum confertiflorum (71)
  Polygonum kelloggii (567)
  Polygonum polygaloides (1762)
  Polygonum watsonii (27)
family name
  Polygonaceae
Image Author: ©2009 Barry Breckling
Image License: CC BY-NC-SA
Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color color
Flower size is about 0.1 inches
Leaf: Alternate
Plant Observed 3rd week of May thru 1st week of September

How Likely at this Location (57%)
Name Match (100%)
Plant Showiness (27%)
Links to Plant Photos
Cal Photos (47)
G.D.Carr (28)
Paul Slichter (10)
R.L.Carr (21)
Jay Sullivan (1)
Wikimedia Commons (1)
base map where plant found
mag select

Meadow
Forest
Riparian
Disturbed
grid lines base