What term is used for plants that have a single upright main trunk branching to form a crown?

The term used for plants that have a single upright main trunk branching to form a crown is "trees." This description is characteristic of many species within the plant kingdom that exhibit a defined vertical structure, typically featuring a central stem called a trunk, which elevates the branches and leaves above the ground. This growth form allows trees to compete effectively for sunlight, making them important components of many ecosystems.

Trees differ from shrubs, which are generally shorter and may have multiple stems, and grasses, which are usually herbaceous and lack a woody structure. Creepers are plants that tend to grow along the ground or clime over other surfaces, often lacking the upright trunk structure characteristic of trees. The distinct structure of trees plays a critical role in their function within the environment, including providing habitat, stabilizing soil, and contributing to the carbon cycle.