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Polygonum aviculare
prostrate knotweed Smartweed-Buckwheat Family
Polygonum aviculare Polygonaceae
common names
  prostrate knotweed
  yard knotweed
  common knotgrass
accepted scientific name
  Polygonum aviculare L.
rules for finding collection records
  Polygonum arenastrum (1156)
  Polygonum aviculare (8768)
  Polygonum buxiforme (325)
family name
Image Author: ©2009 Barry Breckling
Image License: CC BY-NC-SA
Image Source Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color
Flower size is about 0.1 inches
Leaf: Alternate, Simple
Plant Observed 2nd week of April thru 1st week of November
Apparently native to Eurasia and North America

How Likely at this Location (100%)
Name Match (100%)
Plant Showiness (27%)
base map where plant found
mag select

grid lines base