Magnoliopsida, commonly known as dicotyledons or dicots, is a class of flowering plants characterized by having two seed leaves, or cotyledons, in their seeds. This group includes a wide variety of plants, such as trees, shrubs, and herbs, and is known for its diverse forms and structures. Dicots typically have broad leaves with a network of veins, and their flowers usually have parts in multiples of four or five. Examples of dicots include roses, sunflowers, and oak trees. This class plays a significant role in ecosystems and agriculture, providing food, shelter, and resources.