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Feverfew (Tanacetum parthenium [syn. Chrysanthemum parthenium]), a summer-flowering southern European perennial with strongly aromatic foliage long used in herbal medicine, principally as a headache cure Note:. Feverfew flowerheads open over a few weeks and do not fall naturally until dry. This image shows a plant as it normally appears at peak flowering, with flowers of different ages, consequently not all the flowerheads are 'picture perfect'. tanacetum-2130htm'>Tanacetum.
![Feverfew (<i>Tanacetum parthenium [syn. Chrysanthemum parthenium]), a summer-flowering southern European perennial with strongly aromatic foliage long used in herbal medicine, principally as a headache cure <span style='color:red'>Note:</span>. Feverfew flowerheads open over a few weeks and do not fall naturally until dry. This image shows a plant as it normally appears at peak flowering, with flowers of different ages, consequently not all the flowerheads are 'picture perfect'. tanacetum-2130htm'>Tanacetum.](./data/media/1/CFGd854.jpg "Feverfew (<i>Tanacetum parthenium [syn. Chrysanthemum parthenium]), a summer-flowering southern European perennial with strongly aromatic foliage long used in herbal medicine, principally as a headache cure <span style='color:red'>Note:</span>. Feverfew flowerheads open over a few weeks and do not fall naturally until dry. This image shows a plant as it normally appears at peak flowering, with flowers of different ages, consequently not all the flowerheads are 'picture perfect'. tanacetum-2130htm'>Tanacetum.")