HistoryThe pyrethre herb is supposedly named after a famous temple in ancient Greece called Parthenon, hence the name Parthenium.In the 13th century, Welsh physicians used pellitory (pyrethre) as a remedy for toothache. It was also mentioned by Arabian medical writers and is a favorite remedy in the East.An old superstition held that it was planted around dwellings to purify the air and ward off diseases.EcologyOtherwise known as feverfew, pellitory or chrysanthemum parthenum, pyrethre has round.