What is a weed, and is it different from an invasive species?
For a gardener, a weed might be a misplaced plug of grass. For a corn farmer, a weed might be a clump of nightshade. By definition, a weed is any plant that interferes with human activities and is not valued where it is growing. For the Adirondack Park Invasive Plant Program, our weeds interfere with conservation activities because they displace our native Adirondack plant and animal communities and decrease the biodiversity of our natural areas. In this context a weed is the same as a non-native, invasive plant species.