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Photo © beardendb, all rights reserved
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Comments & Identifications

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common knotweed - Photo (c) John Hilty, some rights reserved (CC BY-NC)
beardendb's ID: common knotweed (Polygonum arenastrum)
Posted by beardendb about 5 years ago (Flag)
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Japanese Knotweed - Photo (c) Anita, some rights reserved (CC BY-NC-SA)
richard_olmstead's ID: Japanese Knotweed (Polygonum cuspidatum [inactive]) (inactive taxon)

This is Japanese knotweed, a serious invasive plant in the Puget Sound region. Fallopia japonica is a synonym sometimes used for this species.

Posted by richard_olmstead about 5 years ago (Flag)
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Japanese knotweed - Photo (c) marie, some rights reserved (CC BY), uploaded by Marie Studer
richard_olmstead's ID: Japanese knotweed (Fallopia japonica) Added as part of a taxon swap
Posted by richard_olmstead over 4 years ago (Flag)
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Bohemian Knotweed - Photo (c) Jeff Lesh, some rights reserved (CC BY-NC)
nutcracker's ID: Bohemian Knotweed (Fallopia × bohemica)

This one is the hybrid between Japanese and Giant Knotweeds; leaves too large and elongated for pure Japanese.

Posted by nutcracker 11 days ago (Flag)
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common knotweed - Photo (c) John Hilty, some rights reserved (CC BY-NC)
beardendb's ID: common knotweed (Polygonum arenastrum)
knotweeds and allies - Photo (c) Dinesh Valke, some rights reserved (CC BY-NC-ND)
Community ID: knotweeds and allies (Family Polygonaceae)
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Bohemian Knotweed - Photo (c) Jeff Lesh, some rights reserved (CC BY-NC)
nutcracker's ID: Bohemian Knotweed (Fallopia × bohemica)
Japanese knotweed - Photo (c) marie, some rights reserved (CC BY), uploaded by Marie Studer
richard_olmstead's ID: Japanese knotweed (Fallopia japonica) Added as part of a taxon swap
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Data Quality Assessment

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Observation © beardendb
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