The root is white, the stem is erect, the basal leaves are clustered, and the leaves are rosette-like and pinnate. The leaves are hairy, the stem leaves are narrowly lanceolate or lanceolate, and the stem is 20~50 cm high when flowering; Raceme terminal axillary, with small white flowers; The short pod is flat, inverted triangle and contains many seeds. Cruciferae plants of Cruciferae. It is a cold-tolerant vegetable and needs a cool and sunny climate.

Shepherd's purse Shepherd's purse is a cold-tolerant vegetable, which needs a cold and sunny climate. The optimum temperature for seed germination is 20-25 degrees Celsius. The optimum temperature for growth and development is 12-20 degrees Celsius. The temperature is lower than 10℃ and higher than 22℃, which leads to slow growth, prolonged growth period and poor quality. Shepherd's purse has strong cold tolerance. At the low temperature of 2-5℃, shepherd's purse 10 ~ 20 days goes through vernalization stage, that is, bolting and flowering.

Brief introduction of shepherd's purse plants

Shepherd's purse is a cruciferous plant, also known as ground vegetable, and it is a kind of wild vegetable that people like to eat. Shepherd's purse is also known as grass protection and water chestnut. Feed on young leaves. Originated in China and spread all over the world, China has collected wild shepherd's purse for food since ancient times, and the use of shepherd's purse was recorded as early as 300 BC. From the end of 19 to the beginning of the 20th century, Shanghai suburbs have been cultivated for more than 90 years. Major cities in China have begun to introduce and cultivate, but they are still in the range of sporadic production.