A forb is a family of plants that have broad leaves and herbaceous structures. Forb plants include sunflowers, spiny aster, tall goldenrod, water cress and hyssop.
Forbs include most herbaceous plants that are not grasses. The term is often synonymous with "herb," as it describes most flowering herbs that are not shrubs. They tend to be flowering plants and have dicot leaf structures. This means that they have lots of veins in their leaves, which run in many different directions. Forb plants can be perennial, annual or biennial. They can grow in a variety of habitats, including agricultural fields, home gardens and wild landscapes.