Clovers, also called trefoils, are plants of the genus Trifolium (from Latin tres 'three' and folium 'leaf'), consisting of about 300 species of flowering plants in the legume family Fabaceae originating in Europe.
clover, (genus Trifolium), genus of about 300 annual and perennial species in the pea family (Fabaceae). Clovers occur in most temperate and subtropical regions of the world, except Southeast Asia and Australia; cultivated species have become naturalized in temperate regions worldwide.