Pseudofumaria lutea (L.) Borkh. (syn.: Corydalis lutea (L.) DC.) (Alps) – A rather common, widely naturalized and probably increasing escape from cultivation. Known at least since 1824 (Durand 1899). Always found on old walls or rocks. Most records are from (sub-) urban habitats but Pseudofumaria lutea might as well grow in more natural ones.
Especially in larger cities (Antwerpen, Brugge, Brussel, Gent, Leuven) much increasing (or possibly previously neglected).
Selected literature
Durand T. (1899) Phanérogames. In: De Wildeman E. & Durand T., Prodrome de la flore belge. A. Castaigne Editeur, Bruxelles: 1112 p.
Kent D.H. (1992) Pseudofumaria lutea. BSBI News 60: 20-21.
Van Landuyt W. (2006) Pseudofumaria lutea. In: Van Landuyt W., Hoste I., Vanhecke L., Van den Bremt P., Vercruysse W. & De Beer D., Atlas van de flora van Vlaanderen en het Brussels gewest. Instituut voor Natuur- en Bosonderzoek, Nationale Plantentuin van België en Flo.Wer: 718.