| Literature:
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 Darbyshire, I., Timberlake, J., Osborne, J., Rokni, S., Matimele, H., Langa. C., Datizua, C., de Sousa, C., Alves, T., Massingue, A., Hadj-Hammou, J., Dhanda, S., Shah, T., Wursten, B. (2019).  The endemic plants of Mozambique: diversity and conservation status Phytotaxa 136  Page 88.   
Paton, A.J. et al. (2013).  Lamiaceae Flora Zambesiaca 8(8)  Page 250. As Plectranthus psammophilus  
Paton, A.J., Mwanyambo, M., Govaerts, R.H.A., Smitha, K., Suddee, S., Phillipson, P.B., Wilson, T.C., Forster, P.I., Culham, A. (2019).  Nomenclatural changes in Coleus and Plectranthus (Lamiaceae): a tale of more than two genera Phytokeys 129  Page 86.   
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