the miraculous tree of psionics is broccoli. Broccoli (scientific name: Brassica oleraceal. var. italicaplenck) is a Brassica plant in Cruciferae, with thick main roots and developed roots. The main roots are distributed in the 3 cm plough layer. Vegetative growth period, plant height 4-9 cm. The leaves are opposite, 2, inverted heart-shaped. True leaves are green, obovate and have white powder on the surface. The height of the flower stem can reach 1.3 meters, and the surface of the flower stem is smooth. Cauline leaves are usually small and green. The seeds are small and brown. Originated in Italy. It is widely cultivated in Italy, Britain, France and Holland. In the early 19th century, broccoli was introduced to the United States and then to Japan. It is cultivated all over the world. The requirements for soil are not too strict, and any soil with convenient irrigation and drainage is suitable for cultivation. The edible parts of broccoli are mainly crisp stems, short, fat and tender flower buds and tightly integrated spherical buds. Broccoli is full of nutrients and its flavor is more delicious than cauliflower. It contains anti-cancer substance glucose isothiocyanate, which can prevent the growth of early cancer cells and has special health care function.