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FEVERFEW Tanacetum parthenium (Asteraceae) Height to 50cm. Upright, much-branched and downy perennial that is strongly aromatic. Grows in disturbed ground, and on verges, waysides and old walls. FLOWERS are borne in daisy-like heads, 1-2cm across, that comprise yellow disc and white ray florets; in loose clusters (Jul-Aug). FRUITS are achenes. LEAVES are yellowish green and pinnately divided; lower leaves stalked, upper ones unstalked. STATUS-Introduced as a garden plant and widely naturalised, often in the vicinity of habitation.