cutleaf teasel
Dipsacus laciniatus L.
Overview
- Appearance
- Dipsacus laciniatus is a monocarpic perennial plant that grows as a basal rosette for at least a year until sending up a flowering stalk that can reach 6-7 ft. (1.8-2.1 m) in height. The plant dies after flowering.
- Foliage
- Opposite leaves are joined at the base and form cups that surround the prickly stem.
- Flowers
- 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.
- Fruit
- A single plant can produce up to 2,000 seeds and can remain viable in the soil for at least two years.
- Ecological Threat
- Dipsacus laciniatus 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. It was introduced from Europe in the 1700's and spreads by producing abundant seeds. It can be found in the northern states from Massachusetts to Colorado. This is an EDRR plant for the Southeastern United States. It has been reported in Virginia, West Virginia and Kentucky.
Selected Images
Maps
EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State List - This map identifies those states that list this species on their invasive species list or law. For more information, visit Invasive.org
Invasive Listing Sources
- California Invasive Plant Council
- City of Ann Arbor Michigan Parks and Recreation
- Colorado Noxious Weeds
- Hoffman, R. & K. Kearns, Eds. 1997. Wisconsin manual of control recommendations for ecologically invasive plants. Wisconsin Dept. Natural Resources, Bureau of Endangered Resources. Madison, Wisconsin. 102pp.
- Indiana Invasive Species Council - Invasive Plant List
- Invasive Plant Association of Wisconsin
- Invasive Plant Species of West Virginia
- Jil M. Swearingen, Survey of invasive plants occurring on National Park Service lands, 2000-2007
- John Randall, The Nature Conservancy, Survey of TNC Preserves, 1995.
- Kentucky Exotic Pest Plant Council - Significant Threat
- Minnesota Noxious Weeds
- Missouri Noxious Weeds
- Missouri SRISP Species List
- National Park Service, Mid-Atlantic Exotic Plant Management Team Invasive Plant List
- New Invaders of the Northwest
- New Invaders of the Southeast
- New Jersey Invasive Species Strike Team 2017 Invasive Species List
- New York Regulated and Prohibited Invasive Species - Prohibited
- Nonnative Invasive Species in Southern Forest and Grassland Ecosystems
- Ohio Invasive Species Council
- Oregon Noxious Weeds
- Pacific Northwest Exotic Pest Plant Council, 1998
- WeedUS - Database of Plants Invading Natural Areas in the United States
- West Virginia Invasive Species Strategic Plan and Volunteer Guidelines 2014
- West Virginia Native Plant Society, Flora West Virginia Project, and West Virginia Curatorial Database System, September 3, 1999
- Wisconsin Noxious Weeds
- Wisconsin's Invasive species rule – NR 40
Taxonomic Rank
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Subclass: Asteridae |
| Order: Dipsacales |
| Family: Dipsacaceae |
| Genus: Dipsacus |
| Subject: Dipsacus laciniatus L. |
Synonyms and Other Names
Other Common Names:
cut-leaved teasel