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Draba includes over 390 species distributed globally, mostly in extreme ecosystems at high elevations and latitudes making it the most successful and species-rich genus of the Brassicaceae, particularly in mountain and alpine regions. In this analysis, species richness data were collected from floras and checklists, and species distribution patterns were compared on a global scale for 367 of the species. A compilation of the geographical distribution of the entire genus using a presence/absence matrix was generated and displayed upon geographical maps. The three areas of highest species richness are the northern Andes (48 spp.), central Rocky Mountains (49 spp.), and Tibetan Plateau/C-SW Chinese (Hengduan) mountains (52 spp.). Previous phylogenetic analyses are in congruence with the area cladogram shown herein. It is shown that Draba has a diverse range of distribution patterns …