A Checklist of the Vascular Plants of Washington State
Hosted by the University of Washington Herbarium, Burke Museum
Hosted by the University of Washington Herbarium, Burke Museum
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Polygonaceae » Polygonum aviculare ssp. depressum
Last updated 2/14/2024 by David Giblin.
Polygonum aviculare L. ssp. depressum (Meisn.) Arcang.[FNA5, HC2]
common knotweed, oval-leaf knotweed
Publication: Comp. Fl. Ital. 583. 1882.
Origin: Introduced from Europe
selected vouchers: WTU
Notes: FNA5: "Plants referable to P. arenastrum in the narrow sense are the most commonly encountered form of the subspecies in North America."
References: (none)
Synonyms & Misapplied Names:
Polygonum aequale Lindm.
Polygonum arenastrum Boreau[JPM, ILBC4]
Polygonum aviculare L. ssp. aequale (Lindm.) Asch. & Graebn.
Polygonum aviculare L. ssp. calculatum (Lindm.) Thell.
Polygonum aviculare L. ssp. microspermum (Jordan ex Boreau) Berher
Polygonum aviculare L. var. depressum Meisn.
Polygonum calcatum Lindm.
Polygonum microspermum Jordan ex Boreau
Polygonum montereyense Brenckle
