Ethnobotanical statistics of disease groups treated by medicinal plants used in the province of Taza (northern Morocco)
Abstract
Background: The province of Taza (northern Morocco) constitutes one of the richest and most diversified ecological and floristic zones. Quantitative ethnobotanical indices can enhance the continuous propagation of local phytotherapeutic plants in this area.
Methods: The 91 taxa identified based on an ethnobotanical survey carried out between March and October 2021 in Taza province has been statistically valued. IBM-SPSS-Statistics-25 processed the results. Frequency of Citation (FC), Relative Frequency of Citation (RFC), Use Value (UV), Fidelity Level (FL), Ranking Order Priority (ROP), Informant Consensus Factor (ICF) and Informant Agreement Ratio (IAR) were calculated, and The Principal Component Analysis (PCA) was performed.
Results: These medicinal plants have 61 medicinal uses belonging to 14 disease groups. Olea europaea L. subsp. Europaea displayed highest values for RFC (0.294) and ROP (74.41), Salvia officinalis L. displayed highest UV (0.606) and 15 species displayed highest FL (100%). The classes of diseases where ICF and IAR are high are respectively endocrine, nutritional and metabolic diseases (ICF=IAR=0.92) and Diseases of the digestive system (ICF=IAR=0.88). The PCA revealed that most of the variation was captured by the first component, showing the importance of the using Medicinal plants (79.48%), which grouped (ROP, RFC, IC, UV and T) whose most used species are Salvia officinalis L.. While for the second component (16.75%) showing the fidelity of use for a disease, Cuminum cyminum L. is the most faithful.
Conclusions: These statistical results reflect the importance of medicinal plants in treating of diseases.
Keywords: Ethnobotanical survey; Medicinal plants; Medicinal uses; Disease group; Ethnobotanical indices; Taza (Morocco).
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