Unlike many of its relatives in the Asteraceae, or daisy family, the golden disk flower of tansy is not surrounded by ray petals. Although both the flowers and leaves are intensely bitter, tansy has a long history as a culinary herb.
Tansy (reynfan) is hot and a bit moist, and is effective against all over-abundant humors which flow out. Whosoever has catarrh, and coughs because of it, should eat tansy, taken either in broth or small tarts, or with meat, or any other way. It checks the increase of the humors, and they vanish . . . .
—Hildegard of Bingen, Physica, Chapter CXI
The old German name reynfan used by Hildegard refers to the effect of tansy (Tanacetum vulgare) on the “reins,” or kidneys. The fifteenth-century herbal Der Gart der Gesundheit differs from Hildegard in classifying tansy as hot and dry in the first degree, rather than moist; it recommends tansy as a diuretic and vermifuge, as well as a treatment for gout and fever. (For more on Hildegard of Bingen, see “Mutter Natur,” October 15, 2010. For more on the humoral theory on which her prescription is based, see “Cool, Cooler, Coolest,” July 27, 2012.) Read more »