What "legume" means in gardening

A legume is a plant that belongs to the Fabaceae family, which includes peas, beans, lentils, and peanuts. These plants are characterized by their ability to fix nitrogen in the soil, which helps to improve soil health and fertility. Legumes are often grown for their edible seeds, which are rich in protein, fiber, and other essential nutrients. Additionally, legumes are commonly used as cover crops to protect soil from erosion, suppress weeds, and provide green manure.