Invasive species are non-native species that can cause harm to the environment, the economy or to human health. Invasives come from all around the world. As international trade increases, so does the rate of invasive species introductions. Invasive species are one of the greatest threats to New York's biodiversity. They cause or contribute to: habitat degradation and loss; the loss of native fish, wildlife and tree species; the loss of recreational opportunities and income; and crop damage and diseases in humans and livestock ( from the New York Dept. of Environmental Conservation).
This bamboo-like plant is shade-tolerant and grows from 3 to 15 feet tall, in disturbed areas, often near water sources.
Thought to have been introduced as packing material in crates from China, Japanese stiltgrass can grow in a variety of habitats.
Giant hogweed is one of New York's most striking and dangerous invasive plants. Learn how to recognize and manage it safely on our site.
Areas that have been cleared of swallow-wort should be planted with rapid-growing native species to avoid introduction of other invasive plants.
Garlic mustard is one of very few non-native plants to be able to successfully invade forest understories.
Exotic bush honeysuckle is perhaps the most widespread exotic invasive in the U.S. Widely dispersed by birds, it is now found in at least 38 states.
Last updated November 14, 2016