New observations of garden escapes in Meise Botanic Garden (Belgium), part 1

As a continuation of previous investigations of the subspontaneous flora in the domain of Meise Botanic Garden (MBG), further fieldwork since 2011 yielded several interesting new records of vascular plants garden escapes. In this contribution, part of these new records for MBG are presented. In total 23 taxa not previously recorded are presented. Eight of these had not been recorded so far in the wild in Belgium. The status of naturalization of these taxa varies from mere ephemeral to naturalized and potentially invasive. For each taxon we provide information on its native distribution, degree of invasiveness, occurrence in MBG as part of the collection and as escapes from the collections, their status in Belgium and elsewhere, and references to the herbarium collections in BR. Where deemed useful, information on related species is given. A number of taxa are illustrated with pictures.