Abstract

Ethnobotanical study of medicinal plants used by traditional healers was carried out in the Blue Nile State, South-eastern Sudan. Information was obtained through conversations with traditional healers with the aid of semi-structured questionnaires. Informant consensus, use value, and fidelity level for each species and use category were calculated. A total of 31 traditional healers participated in the study. Fifty three plant species distributed into 31 families and 47 genera were identified as being used to treat one or more ailments. The major source of remedies came from wild plants. The most frequently mentioned indications were digestive system disorders, infections/infestations, pain, evil eye and respiratory system disorders. The majority of remedies are administered orally and decoctions were the most frequently prepared formulation. The collected data may help to avoid the loss of traditional knowledge on the use of medicinal plants in this area. Considering the widespread use of these medicinal plants to treat various ailments, it therefore becomes crucial to scientifically validate the therapeutic uses and safety of these plants through phytochemical screening, different biological activity tests and toxicological studies.

Key words: Medicinal plants, ethnobotanical survey, Blue Nile State, Sudan.