1. There are many names: cassia seed, cassia seed and Yangming. Yang Jiao (Guangya), Cassia equisetifolia, Periploca, Stone Bean, Pseudo Mung Bean, Horseshoe Seed, Senecio Senecio, Celery, Yangjiao, Wild Mung Bean, Pig Bone, Pig Manure Blue Bean, Fine-leaf Pig Manure Bean, Night Seed and Sheep Tail Bean.

2. Decides:

Cassia seed is a kind of plant, also known as: closing the door at night, touching sheep's feet, pseudo-Ceratophyllum, pseudo-peanut, night grass and wild flowers.

3. Cassia seed is a mature seed of Cassia seed.

Cassia is panicum miliaceum, about 1 m high. The stem is erect, the upper part is much branched, and all are pubescent. Leaves alternate; Heavy pinnate compound leaves; There are grooves on the petiole and glands between the two leaflets on the leaf axis; Stipules linear, caducous; Leaflets in 3 pairs, obovate, 2 ~ 3 cm long and 1.5 ~ 3 cm wide, rounded at the top, slightly pointed, broadly wedge-shaped or nearly round at the base, biased to one side, entire, nearly hairless at the upper part and pilose at the lower part. Flowers axillary, in pairs; The total pedicel is about 65438±0cm long and pilose; Sepals 5, ovoid, pilose outside; Petals 5, obovate or elliptic, with short claws, yellow; Stamens 10, upper 3 degenerated, lower 7 fully developed; Ovary is slender, curved, hairy, stipitate, style is extremely short, and stigma is capitate. Pod, linear, slightly flat, arched, 15 ~ 24 cm long, 4 ~ 6 mm in diameter, puberulent. The seeds are mostly diamond-shaped, gray-green and shiny. The flowering period is from June to August. Fruit-bearing period: September ~ 65438+ 10.

Cassia is wild or cultivated on hillsides and rivers. Distributed in most parts of the country.

The whole grass or leaves (wild flowers) of this plant can also be used as medicine.

4. Collection of Cassia seed: after the fruit is ripe in autumn, it is harvested, the whole plant is cut or picked, dried in the sun, seeded, pod shells and impurities removed, and then dried in the sun.

5. Cassia seed: dry seed, diamond-shaped, horseshoe-shaped, slightly pointed at one end and truncated at the other end, 5-8 mm long and 2.5-3 mm wide. The surface is yellow-brown or green-brown, smooth and shiny, with 1 raised brown ribs on both sides, and light-colored micro-concave ribs on both sides, which will burst when soaked in water. Hard, not easy to break, thin cross-section skin, gray-white to yellowish endosperm, yellow or dark brown cotyledons, strongly wrinkled and shriveled. No gas, slightly bitter, slightly sticky. The particles are uniform, full and yellowish brown.

6. Origin: It is produced all over the country. Location: Anhui, Guangxi, Sichuan, Zhejiang, Guangdong and other places.

Second, the efficacy of cassia seed

In recent years, medical and pharmacologists in China have proved that Zi Ming not only can see clearly, but also has many new achievements.

1, prevention and treatment of myopia and presbyopia

This product can significantly improve the activity of lactate dehydrogenase in canine ciliary muscle. It has the functions of dilating peripheral blood vessels, improving blood circulation of retina and visual meridians, promoting water swelling and absorption, and eliminating eye muscle numbness and asthenopia, so it can prevent and treat myopia and presbyopia.

2. Prevention and treatment of white cataract

The level of LDH in aqueous humor and serum of senile cataract patients was significantly lower than that of normal people. After taking cassia seed, the activity of LDH in eye tissue increased, which can make up for the decrease of LDH activity during the formation of senile cataract, thus maintaining the normal level of LDH in eye tissue of the elderly, preventing and delaying the occurrence and development of senile cataract.

3. Regulating blood lipids

Let domestic rabbits with high cholesterol take this product continuously for 3 months. The results show that this product can inhibit blood rise, clear cholesterol and harden plaque formation. The experimental results show that anthraquinone glycoside is one of the main components of Semen Cassiae in reducing blood lipid, because it has catharsis effect, which can reduce the absorption and excretion of cholesterol, reduce the consumption of low-density fat eggs through feedback regulation, remove cholesterol from lower blood level, and delay and fight the formation of atherosclerotic plaques.

Step 4 lower blood pressure

This product can obviously reduce the systolic blood pressure of rats with recurrent and hereditary hypertension, which is significantly different from that before and after treatment. Compared with reserpine, this product has antihypertensive effect on spontaneously hypertensive rats, but the antihypertensive effect is more obvious. The decreasing range (average decreasing value) of this product and reserpine on systolic and diastolic blood pressure in spontaneously hypertensive rats is obviously higher than that of reserpine, but the dosage is far less than that of reserpine, and there is no adverse effect on heart rate and absorption.

Third, the side effects of cassia seed.

Cassia seed tea is regarded as "eight treasures tea for improving eyesight" by office white-collar workers because of its medicinal value of improving eyesight and clearing liver. However, pregnant women must pay attention to the side effects of its "main diarrhea". The latest research found that long-term drinking can lead to irregular menstruation and abnormal endometrium, thus inducing premature delivery.