For those gardeners among us, I have found an interesting website on invasive plant species. It has been put together by the invasive plant council of New York. It is a great guide when deciding what to leave on your property and what to remove. Check it out.
Invasive Plant Council of New York
And if you want more information you can go to the NY page in the National Invasive Species Information Center put on the web by the National Department of Agriculture.
National Department of Agriculture - NY