Tangor  The tangor ("C. reticulata" × "C. sinensis") is a citrus fruit hybrid of the mandarin orange ("Citrus reticulata") and the sweet orange ("Citrus sinensis"). The name "tangor" is a formation from the "tang" of tangerine and the "or" of "orange". Also called the temple orange, its thick rind is easy to peel and its bright orange pulp is sour-sweet and full-flavoured.