International Code of Nomenclature for algae, fungi, and plants
The genus Cacalia L. is a "nomen rejiciendum" (rejected name) under the International Code of Nomenclature for algae, fungi, and plants. The type species "C. alpina" L. has been transferred to "Adenostyles alpina" (L.) Bluff &amp; Fingerh., and the former species of "Cacalia" now reside in a few different genera.