Synonyms: Ruta tuberculata Forssk., Haplophyllum vermiculare Hand.-Mazz., Haplophyllum tuberculatum subsp. vermiculare (Hand.-Mazz.) Maire
The main centre of diversity of Haplophyllum is the Irano-Turanian region (Iran, Turkey, and Central Asia) which harbours 60% of the species diversity (Salvo et al. 2011).