Which wild vegetables can be eaten?

Alfalfa, wormwood, bitter herbs ... are the seasons for picking and eating wild vegetables recently. Fresh and delicious wild vegetables are delicious, but it is not good to be poisoned accidentally. When picking wild vegetables, be sure to pay attention to whether there is a sign prohibiting digging wild vegetables nearby; Don't pick wild vegetables where pesticides have just been sprayed to avoid pesticide poisoning; Don't pick wild vegetables you don't know or haven't eaten; After picking wild vegetables, carefully select them before eating. When processing wild vegetables, we must wash them once, scald them twice, chop them three times, soak them four times, hide them five times and wash them six times to reduce pesticide residues and prevent food poisoning. Many citizens like to eat wild vegetables as their staple food, but the health department reminds them not to overdo it. For example, bitter vegetables taste bitter and cool, and have the effect of detoxifying and reducing fire, but excessive consumption will hurt the spleen and stomach; Wash thoroughly when eating wild vegetables and cook them with boiling water; Do not eat wild vegetables you don't know; People with allergies should not eat wild vegetables. If you have symptoms of group poisoning after eating wild vegetables, you should immediately stop supplying and eating suspected poisoned food, use emergency vomiting methods such as finger pressing on the throat to expel the poison as much as possible, and send the patient to the nearest hospital for treatment as soon as possible; Report to the health administrative department in time, pay attention to protecting the poisoning site, collect and seal all suspicious foods and their raw materials on the spot, prohibit transfer and destruction, and cooperate with relevant departments to investigate. -Excerpted from "5 1766 official website"