Aubrieta deltoidea (L.) DC. (SE-Eur., SW-As.) – A very rare, locally naturalised escape from cultivation. Found in a road verge in Dadizele in 1966 (doubtlessly ephemeral). More or less naturalised populations were discovered on old walls in Colfontaine and Thuin in 2008. Surely overlooked and neglected elsewhere in Belgium.
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Selected literature:
Batarda Fernandes R. (1992) Nota sobre Aubrieta deltoidea (L.) DC. (Cruciferae). An. Jard. Bot. Madrid 50(1): 144
De Jongh S.E. (1957) Aubrieta deltoidea (l.) DC. Correspondentiebl. Florist. Veg.-Onderz. Ned. 3: 27-28.
Rollins R.C. (1982) Another alien in the Californian flora. Rhodora 84:153-154.
Taxonomic name: