citrus family myrtle-leaf orange plant Citrus myrtifolia Raf. Citrus myrtifolia, the myrtle-leaved orange tree, is a species of Citrus with foliage similar to that of the common myrtle. The fruit of the tree resemble small oranges. They are sour or bitter and are commonly called by their Italian name, *chinotto*. They are an essential flavoring agent of most Italian amari, of the popular Campari apéritif, and of several brands of carbonated soft drinks that are generically called "chinotto". [https://en.wikipedia.org/wiki/Citrus_myrtifolia] citrus myrtifolia requires discussion