Bosana is a small to medium-sized olive with an elliptical shape and a dark purple color when fully ripe. It is the most common cultivar of olives in Sardinia. It makes up over 50% of the olive production on the island. The etymology of the name is uncertain, but it could refer to an alleged origin in the territory of Bosa. It is maintained, however, that the cultivar is of Spanish origin. The Bosana is a variety well adapted to less hospitable environments.
Bosana olives are primarily used for olive oil production, and the resulting oil is highly regarded for its fruity, slightly bitter flavor and low acidity. It has a golden color and a medium to robust intensity, with hints of grass, green apple, and almond.
In addition to olive oil production, Bosana olives are also used as table olives. They are typically cured in brine or salt and are often flavored with herbs or spices. When used as table olives, Bosana olives are prized for their rich, meaty texture and intense, slightly bitter taste.