In 1989, the Turkish botanists T. Ekim and A. Güner examined the distribution of species by detailed study of the Flora of Turkey, eight volumes of which had been published by then.
Pada tahun 1989, ahli botani Turki T. Ekim dan A. Güner memeriksa distribusi spesies di diagonal Anatolia dengan melakukan studi yang terperinci mengenai "Flora Turki" (Flora of Turkey), yang kemudian menerbitkannya sebanyak delapan volume.