Alyssum L., Sp. Pl.: 650. 1753.

Tribe: Alysseae DC.

Note. – Earlier works (e.g., AL-SHEHBAZ, 1987, 2012) recognized as many as 195 species in Alyssum, but based on detailed surveys of molecular and morphological data, ŠPANIEL et al. (2015) recognize 115 species. These are distributed throughout the temperate Eurasia and North Africa, with only a single native species in North America. The remaining species placed in Alyssum by previous authors were recognized in the latter work in Odontarrhena C.A. Mey., and that delimitation of both genera is followed here.