Dipsacus laciniatus, Cutleaf Teasel

Gardens & Landscapes, Invasive Species, Extension Master Gardener January 28, 2013 Print Friendly and PDF

Invasive Species: Dipsacus laciniatus, Cutleaf Teasel

Cutleaf teasel is an invasive perennial plant that grows as a basal rosette until sending up a flowering stalk that can reach 6 to 7 ft. (1.8 to 2.1 m) in height. The small white flowers densely cover oval flower heads and are present from July to September. Spiny bracts are located on the ends of flower stems. Opposite leaves are joined at the base and form cups that surround the prickly stem. Cutleaf teasel grows in open, sunny habitats preferring roadsides and other disturbed areas, although it can sometimes be found in high-quality areas such as prairies, savannas, seeps, and sedge meadows. Cutleaf teasel was introduced from Europe in the 1700s and spreads by producing abundant seeds. It can be found in the northern states from Massachusetts to Colorado.

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


Taxonomy: Scientific and Common Names for This Species

Dipsacales > Dipsacaceae > Dipsacus laciniatus L.

Synonym(s): cut-leaved teasel

Dipsacus laciniatus - USDA PLANTS Profile

Distribution Maps

Cutleaf teasel - 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

Cutleaf teasel is an invasive perennial plant that grows as a basal rosette until sending up a flowering stalk that can reach 6 to 7 ft. (1.8 to 2.1 m) in height.

Joy Viola, Northeastern University, bugwood.org Chris Evans, River to River CWMA, bugwood.org

Foliage

Opposite leaves are joined at the base and form cups that surround the prickly stem.

bugwood.org bugwood.org

Flower

The small white flowers densely cover oval flower heads and are present from July to September. Spiny bracts are located on the ends of flower stems.

Chris Evans, River to River CWMA,  bugwood.org Chris Evans, River to River CWMA,  bugwood.org

Fruit

It spreads by producing abundant seeds.

Bruce Ackley, Ohio State University, bugwood.org Chris Evans, River to River CWMA,   bugwood.org

Native Species That Resemble Cutleaf Teasel

Eryngium leavenworthii , Leavenworth's eryngo - Images at invasive.org

Fort Worth Nature Center and Refuge Archive, City of Fort Worth, bugwood.org Fort Worth Nature Center and Refuge Archive, City of Fort Worth, bugwood.org

 

- Images at invasive.org

   
bugwood.org bugwood.org

 

Additional Images for Cutleaf Teasel

Cutleaf teasel - Images at Invasive.org

 

Learning Resources for Cutleaf Teasel

 

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.

New Invasive Plants of the Midwest Fact Sheet - Midwest Invasive Plant Network

Cutleaf Teaseal - Kansas Wildflowers & Grasses

Dipsacus laciniatus L. - Missouriplants.com

Invasive.org - Center for Invasive Species and Ecosystem Health

Cut-Leaved Teasel - Illinois Wildflowers


 

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