Tangelo ( C. reticulata x C. paradisi ) is a citrus culture , a hybrid of tangerine (one of the varieties of mandarin ) and grapefruit (or sometimes pomelo ). The fruit has the size of an orange or sometimes grapefruit. The flesh is yellow to orange in color and has a sour taste. The peel is orange in color, very easy to remove.
|Citrus reticulata × Citrus paradisi|
|Citrus × tangelo JW Ingram et HE Moore , 1975|
The hybrid was obtained in 1897 by Walter Tennyson Swing at the US Department of Agriculture.
Trees are quite large, more frost-resistant than grapefruit. It has several widely known varieties  :