Valeriana pyrenaica L. (Pyrenees) – An exceptional and probably ephemeral alien of uncertain origin. Recorded around 1950 in the Condroz (Lambinon 1957). An introduction by British military troops during World War II has been suggested by the recorder.
Selected literature
Lambinon J. (1957) Valeriana pyrenaica L. en Belgique. Bull. Soc. Roy. Bot. Belg. 89: 107.
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