The conspicuous daisy-like flowers are up to 20 millimetres (3/4 in) across, borne in lax corymbs.
The outer, ray florets have white ligules and the inner, disc florets are yellow and tubular.
Its yellow flowers bloom from July to October, are about 2 cm in diameter.
It is often used to prevent and relieve migraine headaches.
Feverfew may reduce painful inflammation due to arthritis.
It is used for the treatment of fevers, migraine headaches, rheumatoid arthritis, stomach aches, toothaches, insect bites, infertility, and problems with menstruation and labor during childbirth.