Dicots, short for dicotyledons, are a group of flowering plants characterized by having two seed leaves, or cotyledons, in their seeds. They typically have broad leaves with a network of veins and can be found in various environments. Common examples of dicots include roses, sunflowers, and oak trees. In addition to their seed structure, dicots usually have flower parts in multiples of four or five. Their vascular systems are arranged in a ring, which helps transport nutrients and water efficiently. This group of plants plays a significant role in ecosystems and agriculture, providing food, shelter, and oxygen.