Brassica nivalis Boiss. & Heldr. in Boiss., Diagn. Pl. Orient. ser. 2, 1: 32. 1854.

Type: “Hab. in rupibus ad nives Olympi Thessali rara (Heldr. Julio 1851)”.

Holotypus: GREECE: “In rupibus ad nives Olympi Thessaliae”, 24.VII.1851, Heldreich 2559 (G-BOIS [G00332641]; iso-: WU [WU0076059]) .

Notes. – The systematic position of Brassica nivalis is controversial, and it has been assigned to at least five genera of the tribe Brassiceae . Although some authors placed the species in Coincya Rouy (Greuter & Burdet in GREUTER & RAUS, 1983; GREUTER et al., 1986; TAN, 2002) or in Guenthera Andrz. (GÓMEZ-CAMPO, 2003, see comments under Brassica persica), it is tentatively retained in Brassica, as done by LEADLAY & HEYWOOD (1990), JALAS et al. (1996), and WARWICK & AL-SHEHBAZ (2006).

The species does not fit in Coincya because it drastically differs in floral morphology, geography, and chromosome numbers.