spine date seed

Alias jujube, jujube seed, other jujube and thorn jujube. The source is the seed of Zizyphus jujuba, a rhamnaceae plant. Ziziphus jujuba seed (on Leigong's processing) [synonym] Ziziphus jujuba seed (on the meaning of medicine), Ziziphus jujuba seed (on the history of planting medicine in Jiangsu). 【 Source 】 It is the seed of Ziziphus jujuba mill, a rhamnaceae plant. 【 Plant Morphology 】 Zizyphus jujuba (Classic), also known as Spine (Book of Songs), Acer (Erya), Zizyphus jujuba (Tao Hongjing) and Zizyphus jujuba (Ren Fang's Notes on Different Records). Deciduous shrubs or small trees, 1 ~ 3 meters high. Old branches are brown and young branches are green; There are two kinds of thorns on the branch, one is a needle thorn, about 2 cm long, and the other is a reverse thorn, about 5 mm long. Leaves alternate; Petiole is extremely short; Stipules are slender and needle-shaped; Leaf blade elliptic to ovate-lanceolate, 2.5 ~ 5 cm long and 1.2 ~ 3 cm wide, with short and blunt apex, oblique base, serrate edges and 3 main veins. Flowers 2 ~ 3 clustered leaf axils, small, yellow-green; Pedicel extremely short 1 Sepals 5, ovate-triangular; Petals small, 5 pieces, alternate with calyx; Stamens 5, opposite to petals, slightly longer than petals; Disk 10-lobed; Ovary oval, 2-loculed, buried in disk, short style, 2-lobed stigma. Drupe is nearly spherical, 1 ~ 1.4 cm in diameter, blunt at the apex, dark red when ripe and sour. The flowering period is from April to May. The fruiting period is from September to October. Growing on sunny slopes or dry barren soil, often forming bushes. Distributed in Liaoning, Inner Mongolia, Hebei, Henan, Shandong, Shanxi, Shaanxi, Gansu, Anhui, Jiangsu and other places.
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