The superorder Rosiflorae (Dahlgren, 1980) belongs to the Angiospermae and comprises twelve orders (Fagales, Cunoniales, Saxifragales, Rosales, Juglandales, Myricales,
Balanopales, Casuarinales, Trochodendrales, Hamamelidales, Gunnerales and Buxales) and thirtyeight families formed by species with varied habits and a wide distribution in temperate regions.