common tansy USDA PLANTS Symbol: TAVU
U.S. Nativity: Exotic
Habit: Forbs/Herbs
Tanacetum vulgare L.

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Taxonomic Rank: Magnoliopsida: Asterales: Asteraceae
Synonym(s): garden tansy, tansy
Native Range: Europe, Asia ()

Appearance
Tanacetum vulgare is an aromatic, perennial herbaceous plant that can reach up to 5 ft. (1.5 m) in height.
Foliage
The leaves of T. vulgare are alternate and sessile or with a short-stalked. The leaves are highly divided and dotted with small glands.
Flowers
The yellow, button-like flowers develop in dense flat-topped clusters at the apex of the plant. T. vulgare flowers bloom from August to October.
Fruit
The fruits are 5-angled achenes with small glands. Each plant is capable of producing over 50,000 seeds per year.
Ecological Threat
T. vulgare invades disturbed areas, ditch banks and riparian areas. It is native to temperate Asia and Europe. T. vulgare can be toxic if animals or people ingest large amounts of it.

Identification, Biology, Control and Management Resources

Selected Images from Invasive.orgView All Images at Invasive.org


Plant(s);
Michael Shephard, USDA Forest Service, Bugwood.org
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Infestation;
Michael Shephard, USDA Forest Service, Bugwood.org
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Flower(s);
Michael Shephard, USDA Forest Service, Bugwood.org
Additional Resolutions & Image Usage

Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Flower(s);
Steve Dewey, Utah State University, Bugwood.org
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Infestation;
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage

Plant(s); in flower
Steve Dewey, Utah State University, Bugwood.org
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Foliage;
Mary Ellen (Mel) Harte, , Bugwood.org
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Plant(s); in front of a sunflower field
Jan Samanek, Phytosanitary Administration, Bugwood.org
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Plant(s); Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 3: 522.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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EDDMapS Distribution:
This map is incomplete and is based only on current site and county level reports made by experts and records obtained from USDA Plants Database. For more information, visit www.eddmaps.org
 


State(s) Where Reported invasive.
Based on state level agency and organization lists of invasive plants from WeedUS database.

U.S. National Parks where reported invasive:
Antietam National Battlefield (Maryland)
Craters of the Moon National Monument (Idaho)
Yellowstone National Park (Wyoming)



Invasive Listing Sources:
California Invasive Plant Council
California Invasive Plant Council
Faith Campbell, 1998
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.
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.
Mid-Atlantic Exotic Pest Plant Council, 2005
Pacific Northwest Exotic Pest Plant Council, 1998