Persicaria orientalis

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3. Persicaria orientalis (L.) Spach (syn.: Polygonum orientale L.) (SE-As.) – A rather rare, ephemeral garden escape, probably decreasing. First recorded in 1873 near Brussel (Terkamerenbos), subsequently in several places in Flanders (Hertsberge, Mol, Wachtebeke, Wieze, Wilsele) and Wallonia (Grand-Rechain). More recently seen in 1974 in Mol (Zilvermeer) and on the verge of a former clay pit in Marke in 2009 (confirmed in 2010). Usually found in small number in roadverges or along ditches or riverbanks.

Persicaria orientalis, Marke (Kortrijk), on the verge of former clay pit, August 2009, F. Verloove. Persicaria orientalis, Marke (Kortrijk), on the verge of former clay pit, August 2009, F. Verloove.
 

Herbarium specimen

Taxonomic name: 
Persicaria orientalis (Species List)
Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith