The jack tree is well-suited to tropical lowlands, and it bears the largest fruit of all trees; reaching as much as 55 kg (120 lb) in weight, 90 cm (35 in) in length, and 50 cm (20 in) in diameter. A mature jack tree can produce about 100–200 fruits in a year. The jackfruit is a multiple fruit composed of hundreds to thousands of individual flowers, and the fleshy petals of the unripe fruit are eaten. The immature fruit (unripe, commercially labeled as young jackfruit) has a mild taste and meat-like texture that lends itself to being a meat substitute for vegetarians and vegans. The ripe fruit can be much sweeter (depending on variety) and is more often used for desserts.