@article {Steane:2004p1679, title = {Phylogenetic relationships between Clerodendrum (Lamiaceae) and other Ajugoid genera {\l}dots}}, journal = {Molecular Phylogenetics and Evolution}, year = {2004}, month = {Jan}, abstract = {Over the last two centuries the circumscription of the large, pan-tropical genus ( ) has changed frequently, as different authorities have added or removed taxa on the basis of various morphological characters.}, url = {http://linkinghub.elsevier.com/retrieve/pii/S1055790303004238}, author = {D Steane and R de Kok and R Olmstead} }