because of Invasive Plants
are in Jeopardy
Wisconsin Landscapes
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Save Native Plants
Together We Can
Threatening Wisconsin Landscapes
New Invasive Plants

Why should you care?

Invasive plants can:

  • Be detrimental to your health
  • Increase wildfire risks
  • Negatively impact your hunting success
  • Reduce tree regeneration
  • Decrease the number of native birds
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What can you do?

You can:

  • Learn about invasive plants
  • Look for and report invasive plants
  • Remove or control invasive plants 
  • Stop invasive plants from spreading
  • Support organizations such as IPAW
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How can we help?

We can:

  • Assist you with identification
  • Demonstrate how to control invasive plants
  • Connect you with invasive plant specialists
  • Teach you about invasive plants through workshops, field days and conferences
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Welcome to our Website!

“Slowly, but persistently, making their way across the land, ecologically invasive plants are the silent invaders of our time” quoted from Elizabeth J. Czarapata’s book Invasive Plants of the Upper Midwest. 

Most of us don’t even know they exist. We have the illusion of lush, green landscapes, when in fact, much of what we see are invasive plant species. In reality, invasive species have contributed directly to the decline of 49% of threatened or endangered species in the United States. The annual cost to the United States economy is estimated at $138 billion a year, with over 100 million acres suffering from invasive plant infestations.

Because there is a need for a greater understanding, it is IPAW’s mission to promote better stewardship of the natural resources of Wisconsin by advancing the understanding of invasive plants, preventing their introduction and encouraging the control of their spread.”

Make a Donation

You Can Help!
  • Support local conservation and land stewardship
  • Be a part of the conservation community
  • Share your work and be informed on the latest information on invasive plants
  • Network with professionals from many disciplines through conferences and field days
  • Play a critical role in invasive species legislation in the state of Wisconsin
Donate Now

Become a Member

Join Us!

IPAW members receive:

  • Our newsletter, Plants Out of Place by email
  • A discount to IPAW-sponsored conferences, workshops and field days
  • Free admission to events as an IPAW volunteer
  • A discount to the book Invasive Plants of the Upper Midwest – An Illustrated Guide to Their Identification and Control by Elizabeth Czarapata
Join Us

New Threats to Wisconsin

Be on the lookout for these latest threats to Wisconsin!
Callery pear 

Callery pear

Callery pear is widely planted, starting enough years ago that separate cultivars are now pollinating each other, and...
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Japanese hedge parsley 

Japanese hedge parsley

Japanese hedge parsley is considered a winter annual (germinating in fall) or a biennial. The first year plants...
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Porcelain berry 

Porcelain berry

The Porcelain berry has deeply lobed leaves when fully mature and bark that does not peel, like it’s...
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Japanese stiltgrass 

Japanese stiltgrass

Residents and visitors near the Lake Geneva area should be on high alert for this species. A sprawling...
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In past years, the Wisconsin Invasive Species Council held a video contest. In 2018, “Boatbusters” was the winner produced by Brad Steckart and the Washington and Waukesha County Aquatic Invasive Species Team. Fun to watch! 

square miles of invasives in the US
Known Invasive plants in Wisconsin
Volunteer hours per year from IPAW
IPAW Event Attendees

You are donating to : The Invasive Plants Association of Wisconsin, a non-profit organization, making your donation tax deductible.

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