The red grape variety originates from Romania. Synonyms are Beilar Cherasi, Cerno Tuirdo, Cerno Tvarno, Cerno Tvirdo, Cherasi, Corb, Drenoc, Galac, Galac Arbanaski, Garvan, Garvanko, Gordan Negru, Negrou Vyrtos, Negru Batut, Negru Bulgar, Negru Bulgarese, Negru Tare, Negru Vartos, Negru Vertos, Saint Nicolas and Tavan Uzumu.

The ancestry (parentage) is unknown. A possible genetic relationship to the Bulgarian variety Mavrud Varnenski (with the synonym Negru Virtos) is also unknown. The variety was a crossing partner of the new varieties Negru de Drăgășani and Novac. It is an all-female grape variety, which requires cross-pollination. No stock was reported in 2016 (Kym Anderson).
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Thorsten Rahn
Restaurantleiter, Sommelier, Weindozent und Autor; Dresden