Assessment of indigenous knowledge of medicinal plants in Central Zone of Tigray, Northern Ethiopia

This research was initiated to document indigenous knowledge associated with traditional medicinal plants; specifically to identify the plant parts used for medicinal purposes and investigate plant species that are used as medicines for the treatment of human health problems. Twelve traditional healers in the study area were interviewed to gather information on the knowledge and use of medicinal plants used as a remedy for human ailments. The study reported that 16 plant species were commonly used to treat various human ailments. Most of these species (68.75%) were wild and harvested mainly for their leaves and the remedies were administered through oral and dermal. The indigenous knowledge transfer was found to be different. Some traditional healers transfer their indigenous knowledge while others kept the knowledge with them for the sake of secrecy. Most of the traditional healers were found to have poor knowledge on the dosage and antidote while prescribing remedies to their patients. More than one medicinal plant species were used more frequently than the use of a single species for remedy preparations.   Key words: Ethno-botany, indigenous knowledge, knowledge transfer, medicinal plants.