Petrocallis W.T. Aiton, Hort. Kew. ed. 2, 4: 93. 1812.

Note. – This monospecific genus has not yet been assigned to tribe, and its type, P. pyrenaica (L.) W.T. Aiton, is an European species that does not grow in the Flora Orientalis area (see JALAS et al., 1996). However, the following species is currently recognized as Didymophysa Boiss. of the tribe Thlaspideae (see below).