Lamium orvala L. (SC Eur.) – An exceptional and probably ephemeral escape from cultivation. About ten plants were found growing on rough ground in Genk in 2011.
This species is only rarely recorded as an escape, for instance in the British Isles (Clement & Foster 1994) or in Germany (Klotz 2013).
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Selected literature:
Clement E.J. & Foster M.C. (1994) Alien plants of the British Isles. BSBI, London: XVIII + 590 p.
Klotz J. (2013) Cynodon nlemfuensis, Euonymus verrucosus, Nicotiana glauca und andere sehr seltene Neophyten im Raum Regensburg. Hoppea 74: 87-94.
Taxonomic name: