It can clear away heat, detoxify, activate blood circulation and reduce swelling. Used for bruises and sprains. Root: bitter, slightly sweet, cold.

Solanum nigrum: annual herb, 30-120 cm tall; stems erect, multi-branched; oval or heart-shaped leaves alternate, nearly entire; small white flowers bloom in summer, 4-10 in total. Cymes; spherical berries, dark purple when ripe.

Both berries and leaves are edible, but the leaves contain a large amount of alkaloids that must be cooked to detoxify. The whole plant is used as medicine to dissipate blood stasis, reduce swelling, clear away heat and detoxify. It is distributed almost all over China. It likes to be born near fields, wastelands and villages. Widely distributed in temperate to tropical areas of the Americas.

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Extended information:

The suitable temperature for growth is 22-30℃, the optimum temperature during the flowering and fruiting period is 15- 20℃, the setting rate is high at this temperature. It has no strict soil requirements and grows well on loam soils rich in organic matter and strong in water and fertility.

On clay soil that lacks organic matter and has poor ventilation, the root system is poorly developed, the plant growth is weak, and the commercial property is poor. The suitable soil pH value is 5.5-6.5.

It is difficult to grow in the open field due to the high temperature and humidity in summer and autumn. When planted in the open field in winter and spring, the plant growth is slow, the young shoots are prone to fiber aging, and the commerciality is poor. Therefore, in order to meet market demand, it can be cultivated in protected areas all year round.

Collect wild seeds. Wild mature fruits can be collected from ravine roadsides, fields, wasteland and other places. After collecting wild seeds, dry and screen them and store them in a cool place for later use. . Using wild species for seeding, the plants have good growth potential and strong disease resistance, and the grown shoots have a strong bitter taste.

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