El Oualidi, J. and Puech , S. 1993. Some morphological markers of Teucrium section Polium (Lamiaceae) from Morocco. Diagnostic values at different levels of integration. Acta Botanica Malacitana. 18, (Dec. 1993), 163–171. DOI:https://doi.org/10.24310/abm.v18i.8989.