Ziziphus jujuba, also known as Chinese date, Korean date or Indian date, is a small deciduous tree or shrub reaching a height of16–39 ft, usually with thorny branches. The leaves are shiny-green, ovate-acute, 2–7 centimetres long and 1–3 centimetres wide, with three conspicuous veins at the base, and a finely toothed margin. The flowers are small, 5 mm wide, with five inconspicuous yellowish-green petals. The fruit is an edible oval drupe 1.5–3 centimetres (0.59–1.18 in) 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 seed similar to an olive pit. (Zone 6-11)