Malvastrum americanum (L.) Torr. (syn.: M. spicatum (L.) A. Gray) (Am.) – An exceptional and ephemeral alien. Recorded in 1892 as a wool alien in the Vesdre valley (Verloove 1998). In 2005 seen in a garden in Slins (near Liège) from discarded birdseed waste and in 2011 on a gravelly slope along river Maas in Maasmechelen (Boorsem).
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Selected literature:
Verloove F. (1998) Malvastrum americanum en Malvastrum coromandelianum (Malvaceae): nieuw voor de Belgische adventief-flora. Dumortiera 69: 13-15.
Taxonomic name: