Rumex kerneri
5. Rumex kerneri Borbás (syn.: R. cristatus DC. subsp. kerneri (Borbás) Akeroyd et D.A. Webb) (SE-Eur.) – An exceptional alien but possibly overlooked. A small but apparently well-established population was discovered in 2011 in a grassy bank between a railway track and the Kennedylaan in the port area of Gent (Verloove 2013). See http://alienplantsbelgium.be/content/rumex-kerneri-belgium-towards-criti... additional information.
Selected references:
Verloove F. (2013) Verder onderzoek binnen het genus Rumex (Polygonaceae) in België. Dumortiera 102: 3-9. [available online at: http://www.br.fgov.be/DUMORTIERA/DUM_102/Dum_102_3-9_Rumex_Verloove.pdf]