It belongs to the family Rutaceae and it originates from Australia. It is an evergreen shrub typical of the coastal areas and it has small and deep-green leaves with an unmistakable fragrance, sour and stinging, typical of citrus fruits (as a matter of fact, it belongs to the same botanical family). It bears small, starred, pink flowers with four petals. The flowers are rich of essential oils which are used for the preparation of emotional infusions which are ideal in order to find calmness and serenity and which can be helpful against obsessions and insomnia. It prefers sunny and well ventilated positions; its blooming could last throughout the year.