Source: Greuter, W. (2006+): Compositae (pro parte majore). – In: Greuter, W. & Raab-Straube, E. von (ed.): Compositae. Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Willemetia, Willemetia: 1. 1777–1778
Euro+Med: Albania native; Austria, with Liechtenstein native (Austria native, Liechtenstein native); Azerbaijan, with Nakhchivan (Azerbaijan native); Croatia native; Czech Republic native; Former Yugoslavia native; France, with Channel is. and Monaco (France native); Germany native; Greece native; Italy native; Montenegro native; North Macedonia native; Russia (North Caucasus native); Serbia, with Kosovo native; Slovenia native; Spain, with Gibraltar and Andorra (Andorra native); Switzerland native
A. Vangjeli, J. (ed.) 2000: Flore de l'Albanie 4 (as Calycocorsus)