Zinfandel is a black-skinned grape variety with a long debated history. DNA records now show that the grape is the genetic equivalent of Tribidrag and Crljenak Kastelanski (two Croatian varieties), as well as Italian Primitivo. Zinfandel is known for producing rich and robust red wines, often marked by high alcohol of over 15% ABV. Zinfandel-based wines often show flavors of jammy raspberries, blackberries, anise, and black pepper. Zinfandel is cultivated in over 10% of vineyards in California.