Date trees reach up to 30 metres (100 feet) in height, growing singly or forming a clump with several stems from a single root system. Slow-growing, they can reach over 100 years of age when maintained properly. [7] Date fruits (dates) are oval-cylindrical, 3 to 7 centimetres (1 to 3 inches) long, and about 2.5cm (1in) in diameter, with colour ranging from dark brown to bright red or yellow, depending on variety. Containing 61–68 percent sugar by mass when dried, [8] dates are very sweet and are enjoyed as desserts on their own or within confections. There is archaeological evidence of date cultivation in Arabia from the 6th millenniumBCE. [9] The total annual world production of dates amounts to 8.5million metric tons (9.4 × 10 Phoenix dactylifera, commonly known as the date palm, [2] is a flowering-plant species in the palm family, Arecaceae, cultivated for its edible sweet fruit called dates. The species is widely cultivated across northern Africa, the Middle East, and South Asia, and is naturalized in many tropical and subtropical regions worldwide. [3] [4] [5] P.dactylifera is the type species of genus Phoenix, which contains 12–19 species of wild date palms. [6]