Invasive Plants Threaten Maine's Natural Treasures

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Invasive Plants Threaten Maine's Natural Treasures
University of Maine Cooperative Extension

What's the difference between a "weed" and an "invasive plant"?
A weed is simply a plant growing in a place where it’s not wanted. It might be a problem locally, but it generally doesn’t spread to become a large-scale problem in natural areas.

An invasive plant is a non-native plant with very high reproductive potential and the ability to establish across long distances (for example, it might produce seeds that can spread by wind or by animals). An invasive plant can become established in natural areas, and disrupt natural communities by outcompeting native plants.

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