The onion is an herbaceous biennial in the family Liliaceae grown for its edible bulb. The stem of the plant is a flattened disc at the base. The onion plant produces pink or white flowers clustered on stalks. Onions that remain in the ground and are not harvested until they have matured into a larger round onion with dried leaves. This onion is often served on or with meats, poultry, and fish. Common dry onions include brown, red, white onion It has many medicinal benefits.