Tanacetum microphyllum

''Tanacetum microphyllum'' is a species of flowering plant in the aster family, Asteraceae. It is endemic to the Iberian Peninsula.

The plant has been used for centuries in Spanish traditional medicine as an anti-inflammatory and antirheumatic. Compounds isolated from extracts of the plant include santin, ermanin, centaureidin, and hydroxyachillin.