Jujube (scientific name: Ziziphus jujuba Mill.), nickname jujube, jujube, jujube jujube thorn, guan. Rhamnus jujube plants, deciduous small trees, shrubs, up to 10 meters, bark brown or grayish brown, petiole 1-6 mm long, or on the long branch up to 1 cm, hairless or sparse hair, spiny leaf fine, and later often shedding. Yellow green, bisexual, glabrous, with short peduncle, solitary or dense axillary cymes. Drupe oblong or oblong ovate, 2-3.5 cm long, 1.5-2 cm in diameter, from red ripe red purple, mesocarp fleshy, thick and sweet. Seeds oblate ellipsoid, about 1 cm long, 8 mm wide. [1]