Ziziphus zizyphus, commonly called jujube (sometimes jujuba), red date, Chinese date, Korean date, or Indian date is a species of Ziziphus in the buckthorn family Rhamnaceae, used primarily as a shade tree that also bears fruit.
Its precise natural distribution is uncertain due to extensive cultivation, but is thought to be in southern Asia, between Lebanon, Iran, Pakistan, India, Bangladesh, Nepal (called as Bayar), the Korean peninsula, and southern and central China, and also southeastern Europe though more likely introduced there. This plant has been reintroduced in Madagascar and grows as an invasive species in the western part of this island.
It is a small deciduous tree or shrub reaching a height of 5-10 metres -, usually with thorny branches. The leaves are shiny-green, ovate-acute, 2-7 centimetres -wide and 1-3 cm broad, with three conspicuous veins at the base, and a finely toothed margin. The flowers are small, 5 millimetres (0.20 in) wide, with five inconspicuous yellowish-green petals. The fruit is an edible oval drupe 1.5-3 centimetres deep; when immature it is smooth-green, with the consistency and taste of an apple, maturing brown to purplish-black and eventually wrinkled, looking like a small date. There is a single hard stone similar to an olive stone.