1, shepherd's purse: Shepherd's purse is the earliest wild vegetable in spring in northern rural areas, which is rich in protein, calcium, phosphorus, iron, vitamins and amino acids. 2. Bitter vegetables: Bitter vegetables are also called bitter vegetables, bitter vegetables, coriander-free, snake-worm vegetables and so on. As long as the temperature is suitable all year round, it smells like bitter vegetables growing in spring.