common tansy

Tanacetum vulgare L.

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.

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

Plant(s)
Mary Ellen (Mel) Harte, , Bugwood.org
Additional Resolutions & Image Usage

Foliage
Mary Ellen (Mel) Harte, , Bugwood.org
Additional Resolutions & Image Usage

Plant(s) in flower
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Foliage
Joseph M. DiTomaso, University of California - Davis, Bugwood.org
Additional Resolutions & Image Usage

Seed(s)
Katy Chayka, www.minnesotawildflowers.info, Bugwood.org
Additional Resolutions & Image Usage

Plant(s) in flower
Steve Dewey, Utah State University, Bugwood.org
Additional Resolutions & Image Usage