The Greek citron variety of citrus medica (Hebrew: אתרוג קורפו‎ or יְוָנִי) was botanically classified by Adolf Engler as the "variety etrog". This is remarking on its major use for the Jewish ritual during Sukkot, due to its supposedly extraordinary natural beauty. It was also called Pitima, or the Cedro - Citron with a Pigolo - a Pitom, because its usually persisting pitom (carpel). The last does not only enhance its character, but also adds Halachic promotion. Those specific promotional characteristics were considered a threat to other varieties, resulting in more conflicts and controversies than any other ritual species.