The difference between black jujube and red jujube

Red jujube, also known as big jujube, is characterized by very high vitamin content and the reputation of "natural vitamin pill". Black jujube is also known as Junqianzi, wild persimmon, etc., widely distributed in northern China, mainly divided into nuclear and seedless two kinds, the main varieties are big nuclear black jujube, milk jujube and grape black jujube, and so on. Let's take a look at the difference between black jujube and red jujube.

The difference of families and genera between black jujube and red jujube

1. Black jujube: black jujube is a small deciduous tree of plant kingdom, angiosperm phylum, dicotyledonous class, synpetalous subclass, persimmon order, persimmon family, persimmon genus.

2. Red jujube: red jujube is a small deciduous tree of plant kingdom, angiosperm phylum, dicotyledonous class, primitive perianth subclass, rhamnaceae, rhamnaceae, jujube family and jujube.

Morphological differences between black jujube and red jujube

1. Black jujube: the black jujube tree is 5 to 10 meters high, the bark is dark brown, deeply split into squares, and the young branches are gray pilose. Leaves elliptic to oblong, 6-12 cm long and 3-6 cm wide, surface densely pilose and glabrescent, abaxially gray or pale, pilose on veins. Flowers yellowish or reddish, solitary or clustered leaf axils, calyx densely pilose, 4-parted, lobes ovate, fruit subglobose, 1-1.5 cm in diameter, blue-black when ripe, with white wax layer, subsessile. The flowering period is May and the fruit ripening period is from October to November.

2. Red jujube: red jujube is more than 10 meters high, the bark is brown or grayish brown, the petiole is 1mm long, or up to 1cm on the long branch, glabrous or with sparse hairs, stipule thorns slender, often shedding in the later stage. Flowers yellowish green, bisexual, glabrous, shortly pedunculate, solitary or crowded into axillary Cymes. Drupe moment round or long oval, 2-3.5 cm long, 1.5-2 cm in diameter, red at maturity, then reddish purple, mesocarp fleshy, thick, sweet. Seeds oblate-elliptic, ca. 1 cm long, 8 mm wide.

The difference of producing area between black jujube and red jujube

1. Black jujube: black jujube is strong, light-loving, half-shaded, cold-resistant and drought-resistant than persimmon, but it has a certain tolerance to barren soil, moderately alkaline soil and calcareous soil and strong resistance to sulfur dioxide. it is distributed in Hebei, Shanxi, Shaanxi, Liaoning, Central South and Southwest, among which the black jujube in Shexian County of Hebei Province is more well-known.

2. Red dates: red dates are native to China and are often cultivated in Asia, Europe and America. China is distributed in Jilin, Liaoning, Hebei, Shandong, Shanxi, Shaanxi, Henan, Gansu, *, Anhui, Jiangsu, Zhejiang, Jiangxi, Fujian, Guangdong, Guangxi, Hunan, Hubei, Sichuan, Yunnan, Guizhou and other places. Growing in mountains, hills or plains below 1700 meters above sea level, it is widely cultivated.

The difference of efficacy between black jujube and red jujube

1. Black jujube: black jujube enters the spleen and stomach meridian, which can replenish qi, nourish blood, calm the mind and clear the eye. according to modern pharmacological research, it contains glucose, fructose, sucrose, vitamin c, riboflavin, carotene, 13 kinds of amino acids and 36 kinds of trace elements, which can be called "natural comprehensive vitamin pill". It has excellent effect on eyesight care of young girls.

2. Red jujube: red jujube is sweet in taste and warm in nature. it has the effects of tonifying spleen and stomach, tonifying qi and blood, reassuring mind, regulating health and medicine, and treating weakness of spleen and stomach, deficiency of qi and blood, loose stool, fatigue, palpitation and insomnia, woman's irritability, disharmony between camp and health, etc. Jujube leaves, flowers, fruit, bark, root, thorns and wood can be used as medicine.