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Citrus myrtifolia, the myrtle-leaved orange, is a citrus species with foliage similar to that of the common myrtle. It is a compact tree with small leaves and no thorns and can be planted in a pot or other container. Citrus mulberry is sometimes planted in gardens.
The fruit of the tree looks like small oranges. It has a bitter taste and is usually called by its Italian name, chinotto. It is a key flavoring agent of the popular aperitif Campari and many branded carbonated soft drinks generally called "chinotto".