Aegopodium podagraria, Bishops Goutweed

Gardens & Landscapes, Invasive Species, Extension Master Gardener December 16, 2015 Print Friendly and PDF

Invasive Species: Aegopodium podagraria, Bishops Goutweed

Bishops goutweed is an invasive creeping perennial that can grow to 3 ft. (1 m) tall. The compound leaves are alternate and have sheathing bases. The leaves at the top of the stem are smaller and have fewer leaflets. The leaflets are dentate and 1 to 3 in. (2.5 to 7.6 cm) long. Blooming occurs in June, when a flat, 2 to 4 in. (5 to 10 cm) wide cluster of small white flowers develops. Bishops goutweed flourishes in moist, shaded areas such as forest edges and disturbed forests. It is native to Europe and northern Asia and was introduced to North America as an ornamental.

What are invasive species and why should we be concerned about them? 


Taxonomy: Scientific and Common Names for This Species

Apiales > Apiaceae > Aegopodium podagraria L.

none

Aegopodium podagraria - USDA PLANTS Profile

Distribution Maps

Bishops goutweed - The reported distribution of this invasive species across the United States. (Source: Invasive Plant Atlas of the United States)

Up-to-the-minute distribution maps and why they are important

Reporting This Invasive Species

What is the best way and place to report the occurrence of an invasive species? 

 How to report an invasive species sighting to EDDMapS - Early Detection & Distribution Mapping System

EDDMapS - Report an invasive species to EDDMapS

Cooperative Extension Offices - Find your local Cooperative Extension office on this map provided by USDA

How to Identify

This invasive species can be identified by looking for the characteristics described in the paragraphs that follow.

Plant

An invasive creeping perennial that can grow to 3 ft. (1 m) tall.

goutweed  Aegopodium podagraria L. goutweed (Aegopodium podagraria)


Leslie J. Mehrhoff, University of Connecticut,
bugwood.org

Robert Vidéki, Doronicum Kft., bugwood.org

Foliage

The compound leaves are alternate and have sheathing bases. The leaves at the top of the stem are smaller and have fewer leaflets. The leaflets are dentate and 1 to 3 in. (2.5 to 7.6 cm) long.

goutweed goutweed
Leslie J. Mehrhoff, University of Connecticut, bugwood.org Leslie J. Mehrhoff, University of Connecticut, bugwood.org

Flower

Blooming occurs in June, when a flat, 2 to 4 in. (5 to 10 cm) wide cluster of small white flowers develops.

wide cluster of small white flowers

goutweed (Aegopodium podagraria)
Leslie J. Mehrhoff, University of Connecticut bugwood.org Leslie J. Mehrhoff, University of Connecticut, bugwood.org

Fruit

 

goutweed  
Leslie J. Mehrhoff, University of Connecticut, bugwood.org bugwood.org

Native Species That Resemble Bishops Goutweed

Heracleum maximum, common cowparsnip - Images at invasive.org

common cowparsnip common cowparsnip


Dave Powell, USDA Forest Service (retired),
bugwood.org

Rob Routledge, Sault College,bugwood.org

 

- Images at invasive.org

   
bugwood.org bugwood.org

 

Additional Images for Bishops Goutweed

Bishops goutweed - Images at Invasive.org

 

Learning Resources for Bishops Goutweed

Fact Sheet - Pennsylvania Dept. of Conservation and Natural Resources

 

Additional Information, Biology, Control and Management Resources

Control and management recommendations vary according to individual circumstances. Location, habitat, weather, and a variety of other conditions are factors that help determine the best treatment choice. To find the safest and most effective treatment for your situation, consult your state's land-grant institution. If you will use chemicals as part of the control process, always refer to the product label.

United States Land-Grant University System - Find your land-grant university's College of Agriculture, Cooperative Extension Service, or other related partner on this map provided by USDA.

Weeds Gone Wild: Alien Plant Invaders of Natural Areas - Plant Conservation Alliance

Invasive Plants of Wisconsin - University of Wisconsin-Green Bay

Fact Sheet - Ohio State University

Invasive Fact Sheet - The Nature Conservancy


 

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This work is supported by the USDA National Institute of Food and Agriculture, New Technologies for Ag Extension project.