Background: since early times, the people of Morocco use medicinal plants as traditional medicine to treat diabetes. However, little studies have been made in the past to properly document and promote the traditional knowledge. This study was carried out in the Rif (North of Morocco), it aimed to identify medicinal plant used by the local people to treat diabetic problems, together with the associated ethnomedicinal knowledge.

Materials and Methods: The ethnomedical information collected was from 582 traditional healers using semi-structured interviews, free listing and focus group. Family use value (FUV), use value (UV), plant part value (PPV) and informant agreement ratio (IAR) were employed in data analysis. medicinal plant were collected, identified and kept at the natural resources and biodiversity laboratory, Ibn Tofail University, Kenitra.

Results: During the present study 30 medicinal plant species belonging to 14 families has been documented. The most frequent ailments reported were type 1 diabetes. The majority of the remedies were prepared from infusion. Leaves were the most frequently used plant part and Rosmarinus officinalis L. was the specie most commonly prescribed by local herbalists.

Conclusions: The results of this study showed that people Arabs and Imazighen living in the Rif of Morocco are still dependent on medicinal plants. The documented medicinal plants can serve as a basis for further studies on the regions medicinal plants knowledge and for future phytochemical and pharmacological studies.