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Polygonum argyrocoleon
silversheath knotweed Smartweed-Buckwheat Family
Polygonum argyrocoleon Polygonaceae
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common names
  silversheath knotweed
  Persian knotweed
accepted scientific name
  Polygonum argyrocoleon Steud. ex Kunze
rules for finding collection records
  Polygonum argyrocoleon (434)
family name
  Polygonaceae
Image Author: ©2006 Jay Sullivan
Image License: Author's permission
Image Source
Category: Wildflowers
Flowers: Five petals
Petal colors: color
Leaf: Alternate
Plant Observed beginning of February thru 3rd week of November

How Likely at this Location (19%)
Name Match (100%)
Plant Showiness (36%)
Links to Plant Photos
Tony Valois NPS (8)
Cal Photos (6)
Jay Sullivan (1)
Malheur Experiment Sta. (5)
base map where plant found

Disturbed
Riparian
Desert
Grassland
Forest
Wetland
Salt Marsh
grid lines base