 Evidence from DNA studies suggests that either "Callistemon" and some other genera be incorporated into "Melaleuca" or that at least 10 new genera be created from the present genus.In 2014, Lyndley Craven and others proposed, on the basis of DNA evidence, that species in the genera "Beaufortia", "Calothamnus", "Conothamnus", "Eremaea", "Lamarchea", "Petraeomyrtus", "Phymatocarpus" and "Regelia" be transferred to "Melaleuca".The World Checklist of Selected Plant Families maintained by the Royal Botanic Gardens, Kew lists "Calothamnus" and the other genera as synonyms of the accepted genus "Melaleuca".