The above term is also commonly found in botany because ‘trefoil’ or ‘clover’ is a common name for plants of the genus Trifolium. This genus consists of about 300 species of plants that are distributed mostly in the northern hemisphere, but can also be found in Africa and South America.Perhaps the most famous example of the trefoil plant is the shamrock; it is basically a graphic representation of the three-leaf clover. The shamrock is a symbol of Ireland which has been protected by the Irish Government as a national trademark.
