Cloverli is an annual or biennial herbaceous plant of the genus cruciferous flowers. The edible part of western blue flowers is mainly crisp and tender flower stalks, short, fat and tender flower buds and dense clustered spherical buds. Western blue flower has complete nutrients. Every 100 grams of edible part contains about 89 grams of water, about 3.6 grams of protein, 5.9 grams of carbohydrates, rich in vitamin A, vitamin C and a considerable amount of vitamin B1, B2 and phosphorus, iron, calcium and other inorganic substances. Its color is bright green, the flavor is fragrant, and the flower stalk is crisp and tender. , the quality is better than mustard, and the flavor is better than broccoli. Western blue flower was widely eaten in the northern Mediterranean region thousands of years ago. In the Roman era, it was the main food and one of the top ten healthy foods recommended by Time magazine in the United States. According to medical research, western blue flower contains the anti-cancer substance glucose isothiocyanate, which can prevent the growth of early cancer cells and has special health effects, so Europeans, Americans and Japanese people especially like to eat it. There is a specific record of the medicinal value of broccoli in the book "Chinese Herbal Medicine". It is said that it enters the stomach and kidney meridians, and has the effect of clearing dampness and heat, dispelling knots and relieving pain, and benefiting the kidney and replenishing deficiency.