You can't tell by looks whether a plant is native or invasive; the ones that come from other countries can play havoc with native food webs and ecosystems. Kudzu was brought to the U.S. to help control soil erosion but has turned into a rapidly expanding plant that chokes out native plants. Learn about other invasive plants that are causing problems.

Alabama State-listed Noxious Weeds
Alabama State-listed Noxious Weeds USDA Plant Database Click on an accepted name below to view its PLANTS Profile with more information, and web links if available. Some will have photographs
http://plants.usda.gov/java/noxious...
Alien Species Invading Antarctica via Tourists, Scientists
Alien Species Invading Antarctica via Tourists, Scientists By Charles Q. Choi, for National Geographic News Published March 5, 2012 Antarctic tourists and scientists may be inadvertently seedi
http://news.nationalgeographic.com/news/2012/03/12...
Butterbur: The Versatile Plant with a Rich History in Herblore
Butterbur: The Versatile Plant with a Rich History in Herblore, Written by MikeDeHaan, Scribol Staff, "Butterbur has many descriptive nicknames. With different uses both in traditional herblore a
http://scribol.com/environment/plants/butterbur-th...
Celebrating Wildflowers - Invasive Plants
Celebrating Wildflowers - Invasive Plants US Forest Service Noxious weeds are non-native, invasive plants. At first glance they may appear pretty, but invasive plants can pose serious environmen
http://www.fs.fed.us/wildflowers/invasives/index.s...
Cornell University Ecology and Management of Invasive Plants Program
Cornell University Ecology and Management of Invasive Plants Program The Ecology and Management of Invasive Plants Program conducts research to assess the ecological impacts of introduced plant s
http://www.invasiveplants.net/
Introduction of Exotic Species
Introduction of Exotic Species NatureWorks New Hampshire Public Television Welcome to the New World When colonists came to the New World they brought plants and animals with them. Some, like c
http://www.nhptv.org/natureworks/nwep15a.htm
Invasive and Exotic Plants
Invasive and Exotic Plants Invasive.org The following species have been listed on an invasive species list or noxious weed law in North America. For more information on each species, including t
http://www.invasive.org/species/weeds.cfm
Invasive Plant Atlas of the United States
Invasive Plant Atlas of the United States The Invasive Plant Atlas of the United States is a collaborative project between the National Park Service, the Plant Conservation Alliance and the Univers
https://www.invasiveplantatlas.org/
Invasive Plants in North America - Quiz
Invasive Plants in North America By Janelle205 Funtrivia.com Invasive plants are plants that come from a different geographical area that displace native vegetation and disrupt habitats as they
http://www.funtrivia.com/trivia-quiz/SciTech/Invas...
Invasive Plants of Massachusetts
Invasive Plants of Massachusetts Mass Nature List of plants, with photos, that are either invasive or likely invasive.
http://www.massnature.com/Plants/Invasives/invasiv...
Invasive Plants Threaten Maine's Natural Treasures
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 growin
http://extension.umaine.edu/publications/2536e/
Invasive Plants: What's A Gardener To Do?
Invasive Plants: What's A Gardener To Do? Jean's Garden The author's post on invasive species and how they can wreck havoc on the ecosystem. Visit the web site to learn more.
http://jeansgarden.wordpress.com/2010/04/08/invasi...
Invasive Species: Plants
Invasive Species: Plants US Department of Agriculture National Invasive Species Information Center Invasive plants are introduced species that can thrive in areas beyond their natural range of
http://www.invasivespeciesinfo.gov/plants/main.sht...
Kudzu: The Plant That Devours Everything in its Path
Kudzu: The Plant That Devours Everything in its Path, By Karl Fabricius, Scribol Staff, Brief article with excellent photos.
http://scribol.com/environment/plants/kudzu-the-pl...
Noxious Weeds of Nebraska
Noxious Weeds of Nebraska Here you will find names, images, basic biology, and primary habitat for each noxious weed.
http://www.neweed.org/Weeds.aspx
Oregon State Noxious Weed List
Oregon State Noxious Weed List Oregon Department of Agriculture Click on any plant name for a description, impact on the ecosystem, and photos (click to enlarge).
http://www.oregon.gov/ODA/PLANT/WEEDS/statelist2.s...
Plant Directory
Plant Directory Center for Aquatic and Invasive Plants University of Florida The mission of the CAIP Information Office is to inform and educate all stakeholders about the impacts and management
http://aquat1.ifas.ufl.edu/node/34
Purple Loosestrife: What you should know, what you can do
Purple Loosestrife: What you should know, what you can do University of Minnesota The Problem Purple loosestrife is a very hardy perennial which can rapidly degrade wetlands, diminishing their
http://www.seagrant.umn.edu/ais/purpleloosestrife_...
Root out trouble: Noxious weeds grow quickly, choke out native plants
Root out trouble: Noxious weeds grow quickly, choke out native plants By Tom Watson Special to The Seattle Times Philosophically, weeds have a certain appeal. "A weed is just a flower in the wr
http://seattletimes.nwsource.com/html/ecoconsumer/...
The 5 Worst Invasive Plant Species
The 5 Worst Invasive Plant Species, Written by Chris, Scribol Staff, "We ran an article a couple of weeks back about the 5 worst invasive species which focused only on animals. A lot of people wh
http://scribol.com/environment/the-5-worst-invasiv...
The Amazing Story of Kudzu
The Amazing Story of Kudzu, By Max Shores, "Love It, Or Hate It...It Grows On You!" Visit the website for the article.
http://maxshores.com/the-amazing-story-of-kudzu/
The facts about problem plant species.
The facts about problem plant species. WildflowerInformation.org You hear it more and more. "Oh, you can't plant that. It's invasive!" "That wildflower may be pretty, but it's prohibited! It's
http://www.wildflowerinformation.org/InvasiveWildf...
The Flower that Could Leave You with Sunburn for Years
The Flower that Could Leave You with Sunburn for Years, By Karl Fabricius, Scribol Staff, "Many of the 60 species of hogweed have toxic sap that can cause ultra sensitivity to sunlight: they can
http://scribol.com/environment/plants/the-flower-t...
The Periwinkle: America's Welcome Invasive Plant
The Periwinkle: America's Welcome Invasive Plant, Written by MikeDeHaan, Scribol Staff, Images and descriptions of 7 periwinkle species.
http://scribol.com/plants/news-periwinkle-welcome-...
Utah's Noxious Weeds
Utah's Noxious Weeds Utah Weed Control Association Click on any weed name for photos and description.
http://www.utahweed.org/weeds.htm
Washington State Noxious Weed List
Washington State Noxious Weed List Washington state's noxious weeds are listed by categories; open any category and see a photo and extensive information on species.
http://www.nwcb.wa.gov/nwcb_nox.htm
What are Invasive Plants?
What are Invasive Plants? WiseGeek.com "They came ... they conquered. But they didn't see! Any guesses?" Visit the site for the rest of the article.
http://www.wisegeek.com/contest/what-are-invasive-...
Why Should I Care About Invasive Species?
Why Should I Care About Invasive Species? Midwest Invasive Plant Network Excellent, colorful brochure on the problems invasive species create. In PDF format.
https://bugwoodcloud.org/mura/mipn/assets/File/Inv...
Why Should I Care about Invasive Species?
Why Should I Care about Invasive Species? By Carey Minteer, Invasive Plant Species Program Coordinator The University of Georgia What is an invasive species? An invasive species is a non-native
https://www.gainvasives.org/why-care/
Yosemite National Park Invasive Species
Yosemite National Park Invasive Plants National Park Service What's the Problem with Invasive Plants? Invasive plants displace native plants by outcompeting them for water, light, nutrients, an
http://www.nps.gov/yose/naturescience/invasive-pla...