The red grape native to Greece. Synonyms are Gyftokoritho, Kaltsakouli, Kaltzakouli, Kartsakouli, Katskouli and Katsakoulia. The medium to late maturing, high-yielding vine is sensitive to Drought . It provides an acid-stressed red wine. The species is mainly on the island of Zakynthos and in small quantities on Peloponnese grown. A variety Viscum there is on the island of Euboea ( Central Greece ).