Varieties include Thompson Pink and Marsh
 
The grapefruit was at one time called the 'forbidden fruit' and is believed to be of Caribbean origin. Grapefruit trees reach a height of between 22 and 30 feet at maturity. Leaves are 3 to 5 inches long, pointed at the tips with a rounded base. Flowers are white. The leaves are evergreen, living for as long as two years. The grapefruit itself is actually classified as a berry (hesperidium). Grapefruit at maturity are bright yellow with a thick peel with white, pale yellow, pink or red flesh. Seed content depends upon the variety ranging from an average of 50 to 60 seeds in a 'Duncan' or a 'Foster' to almost no seeds in a seedless variety like a 'Marsh' or a 'Star Ruby'.