It is an herb that can be eaten as a vegetable after cooking, which is non-toxic, harmless to the body, and does not taste very good. [1]
Brief introduction. It is often said that the last thing you need to worry about is what will you eat when your survival is in crisis? The human body is highly elastic and you can eat nothing for longer than you think. But on the other hand, tents and water are basically non-negotiable.
However, before you encounter an existential crisis, it is necessary to know these edible wild vegetables. Additionally, once you learn to identify these common edible wild plants, you may be able to add them to your daily diet.
Class. Some common edible wild vegetables.
Dandelion. Perhaps the most recognizable plant in the world, dandelion is a great wild vegetable. The whole dandelion can be eaten from the flower to the root, the flower can be picked directly to eat, a little sweet, the tender leaves are also delicious, the slightly older leaves are a little bitter, but boiled to remove the bitterness, and can also be boiled as tea to drink.
Dandelion. 
Burdock. Burdock may not look very appetizing, but it can be eaten whole. The leaves may be a little bitter, but like dandelion leaves, you can eat them when boiled. The stems can be peeled and eaten raw, and the roots can be eaten boiled. [2] In Japan, burdock is regarded as a high-grade vegetable with high nutritional value.
Burdock. 
Cattails. In many parts of the planet where there is plenty of rainfall, cattails are a great edible wild food. Large roots or rhizomes, as well as the lower part of the stems, can be eaten raw or boiled, and the leaves can be eaten cooked like any other greens. Spike flowers can also be eaten raw, but usually only in the spring when they are more tender. Once the spikes are ripe, pollen can be collected for flour.
Cattails. 
Plantain (plantain).
Plantains are another wild plant that is eaten ubiquitously and can be found in a variety of climatic conditions and areas (including most marinas and parks), with a little more in rainy areas. The leaves can be boiled and eaten, and the seeds can also be eaten. In addition, plantain can be slightly injured and bitten by insects. Just pluck a few leaves, chew them and apply them to the wound.
Plantain. 
Portulaca oleracea. The humble purslane is often hated by gardeners (along with dandelions and plantains), but this dwarf plant is a great edible wild plant that can be found in many places. The leaves, stems, and seeds of purslane can be eaten, either raw or boiled.
Portulaca oleracea. 
Nettle. More commonly known as stinging nettle, it's a plant that should be avoided unless you are foraging for food on purpose. As soon as it is swept by it, your ** will have a tingling sensation and sometimes inflammation that lasts from a few minutes to as long as 1 week. However, once boiled or steamed, nettle instantly transforms into a fantastic green food. Just be sure to wear gloves or otherwise protect yourself.
Nettle. 
Creeping quinoa. Quinoa, also known as goosefoot, can be picked in many places, and the leaves and young stems can be boiled and eaten, giving it the flavor of spinach. Its seeds are high in protein, making it an important food for survival in the wild.
Pigweed. 
Capsule. As a medicinal plant, shepherd's cabbage can be found in large quantities in spring and autumn, and it can be found in places where dandelion purslane is usually present. The young leaves can be eaten raw and have a very delicious taste. Old leaves can be boiled and eaten like dandelion leaves to eliminate bitterness, and seed pods are also edible.
Capsule. 
Sheep's foot. Its young leaves can be eaten raw or lightly boiled. The stalks can be peeled and eaten raw or boiled, and mature seeds (this plant produces a large number of seeds) can be made into flour or added to soups.
Sheep's foot. Prompt.
These are some of the more common wild plants, most of which can be found in a wide variety of habitats and climates. Always be careful when trying new wild foods and make sure you're picking the right plants and not similar ones.