Common
Tansy
(Tanacetum vulgare)
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Common Tansy is an aromatic perennial forb that reproduces by seed or rootstalks. Leaves are deeply divided into leaflets with toothed margins. Leaves are alternate and are consistent in size. The stems are often purplish-red and grow 1 to 6 feet tall. Yellow-orange button-like flowers heads that lack long petals (ray flowers) are numerous (20 to 100) in flat-topped, dense clusters on the terminal stem. The yellowish-brown seeds have five-toothed ridges. Originally from Europe, common tansy was introduced into the United States for its ornamental and medicinal qualities, and has escaped cultivation. |
