It has two subspecies. One subspecies (Quercus macranthera subsp. syspirensis) is found in the thermophilic lower- and mid-montane shrub communities of Turkey, and the other subspecies (Quercus macranthera subsp. macranthera) is found in Georgia, Armenia, Azerbaijan and northern Iran, along the Caspian Sea.
Bull. Soc. Imp. Naturalistes Moscou 11(2):259. 1838. "Quercus macranthera". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved July 19, 2010. https://npgsweb.ars-grin.gov/gringlobal/taxonomydetail.aspx?id=30715 ↩
Mitchell, A.; Wilkinson, J. (2001). Trees of Britain and Northern Europe. Collins. ↩
Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017-11-02). "Appendix 2.1: An updated infrageneric classification of the oaks" (xls). figshare. doi:10.6084/m9.figshare.5547622.v1. Retrieved 2023-02-17. https://figshare.com/articles/dataset/Appendix_2_1_________An_updated_infrageneric_classification_of_the_oaks/5547622/1 ↩