For Clerodendrum
Harley et al. 2004. In Kadereit, J.W. 2004. The families and genera of vascular plants. VII. Flowering plants – Dicotyledons – Lamiales (except Acanthaceae including Avicenniaceae). Springer, Berlin. 478 pp. Google Scholar
Hsiao, J.Y., and M.L. Lin. 1995. A chemotaxonomic study of essential oils from the leaves of genus Clerodendrum (Verbenaceae) native to Taiwan. Bot. Bull. Acad. Sin. 36: 247-251. Google Scholar
Steane, D.A., R.P.J. de Kok, and R.G. Olmstead. 2004. Phylogenetic relationships between Clerodendrum (Lamiaceae) and other Ajugoid genera inferred from nuclear and chloroplast DNA sequence data. Molecular Phylogenetics and Evolution 32: 39-45. Google Scholar
Steane, D.A., R.W. Scotland, D.J. Mabberley, and R.G. Olmstead. 1999. Molecular systematics of Clerodendrum (Lamiaceae): ITS sequences and total evidence. Amer. J. Bot. 86: 98-107. Google Scholar
Yuan, Y.-W., D.J. Mabberley, D.A. Steane, and R.G. Olmstead. 2010. Further disintegration and redefinition of Clerodendrum (Lamiaceae): implications for the understanding of the evolution of an intriguing breeding strategy. Taxon 59: 125-133. Google Scholar