Thistle is a generic term for Medicago plants. It is a perennial flowering plant. One of the most famous is Medicago sativa as a pasture. It is livestock feed.
Cockroaches are the stem leaves of Leguminosae Medicagosativa L.. The nutritional value of earthworms is very high. Each hectogram of fresh produce contains 5.9 grams of protein, 9.7 grams of carbohydrates, 3.28 milligrams of carotene, vitamin C 92 milligrams, vitamin B 20.36 milligrams, calcium 332 milligrams, phosphorus 115 milligrams, and iron 8 milligrams. It also contains vitamin K for hemostasis. Some folks use it to cure stomach or sputum and intestinal bleeding. Poria has the effect of clearing the spleen and stomach, benefiting the intestine, and lowering the bladder stones.