The Mandarin orange(Citrus nobilis Lour.), also known as the mandarin or mandarine (both lower-case), is a small citrus tree (Citrus reticulata) with fruit resembling other oranges. Mandarin oranges are usually eaten plain or in fruit salads. Specifically reddish-orange mandarin cultivars can be marketed as tangerines, but this is not a botanical classification. The tree is more drought-tolerant than the fruit. The mandarin is tender, and is damaged easily by cold. It can be grown in tropical and subtropical areas. The mandarin orange is a variety of the orange family. The mandarin has many names, some of which actually refer to crosses between the mandarin and another citrus fruit. Citrus fruits are usually self-fertile (needing only a bee to move pollen within the same flower) or parthenocarpic (not needing pollination and therefore seedless, such as the satsuma). A 2,2-dimethylpyranoflavonol from Citrus nobilis.