Which term describes a plant that is non-native and, due to lack of competition, can spread rapidly and disrupt plant communities or ecosystems?

• A. Invasive plant
• B. Exotic plant
• C. Translocated plant
• D. Noxious plant

Answer: (A)

Invasive plants are non-native species that spread rapidly and disrupt native plant communities. Because they come into a new environment, they often face little natural competition or predators, allowing them to grow quickly, outcompete native species for light, water, and nutrients, and alter habitats. This combination of rapid spread and ecological disruption is what makes a plant invasive.

A plant labeled exotic is simply non-native to the area; it doesn’t necessarily spread or cause harm. A translocated plant has been moved from one location to another, but that movement alone doesn’t indicate it will become invasive. A noxious plant is a legal designation for plants that are regulated or restricted, which may or may not be invasive in a given area.