Ethnobotanical survey of medicinal plant species used by communities around Mabira Central Forest Reserve, UgandaTugume P, Kakudidi EK, Buyinza M, Namaalwa J, Kamatenesi M, Mucunguzi P, Kalema J.
J Ethnobiol Ethnomed. 2016 Jan 13;12:5
PubMed Central: PMC4712608
Investigators from Makerere University conducted an ethnobotanical study of medicinal plants in 14 villages adjacent to Mabira Central Forest Reserve in Central Uganda, an area about 20 km north of Lake Victoria shoreline immediately to the west of Victoria Nile.
More about the study area:
“The forest reserve occupies gently undulating landscape characterised by numerous flat-topped hills (relics of the ancient African peneplain), and wide shallow valleys…
“Commercial use of the forest began when some parts were harvested in the early 1900’s and until 1988, intensive coffee/banana agricultural encroachment badly damaged parts of the forest. About 21% and 26% of the reserve have been designated as strict nature reserve and buffer zone respectively and the forest in these areas is recovering following extensive plantings of native tree species.
“The human population living in the forest enclaves was approximately 825,000 with a density of 200–230 people per Km-2. The local people are mainly of the Bantu ethnic group of the following tribes; Baganda, Banyarwanda, Basoga, Bagisu, Bakiga, Banyankole, Bagwere and Batoro.
“The reserve has tea and sugarcane plantations around. Some local people reside in settlements for labourers on the tea and sugarcane estates. The extent of growing cash crops other than tea and sugar cane is limited by scarcity of land. However locals are engaged in cultivation of food crops mainly for subsistence consumption like maize, beans, bananas, ground nuts, sweet potatoes and vegetables. Livestock rearing is limited to a few households.”
The team documented 190 plant species used in the treatment of various health conditions. The ten most important medicinal plant species were Vernonia amygdalina, Mormodica feotida, Warbugia ugandensis, Prunus africana, Piptadeniastrum africana, Erythrina abyssinica, Albizia corriaria, Spathodea campanulata, Mondia whitei, and Alstonia boonei.
Vernonia amygdalina was found to be an especially important species, with a fidelity level of 100% and ranking highest in the treatment of malaria:
“Its leaf extract has been confirmed for having good anti-malarial effects and through in vitro studies. Vernonia amygdalina contains steroid glycosides, sesquiterpene and lactones which are active against Plasmodium falciparum. This species has also been found to be clinically effective for the treatment of malaria patients. In human trials, extracts of Vernonia amygdalina reduced parastaemia by 32%. Although Vernonia amygdalina is effective for malaria treatment, it can induce labour in pregnant women thus causing miscarriages and therefore should be avoided by them. Species with high fidelity level such as Vernonia amygdalina for malaria and Erythrina abyssinica for vomiting indicates that these species two were considered of great cultural significance. Erythrina abyssinica too has a wide range of use varying from treatment of malaria, syphilis, tuberculosis to amoebiasis in Uganda. In Kenya E. abyssinica is used to treat mumps, respiratory tract infections in Mexico and febrile illness in Ethiopia. Its usage for different ailments is possibly due to a wide range of bioactive compounds.”
In their conclusion, the authors found that “the diversity of medicinal plant species used and the associated indigenous knowledge are of great value to the local community and their conservation and preservation is paramount.”
“The study shows that [Mabira Central Forest Reserve] habours a wide diversity of plant species used as remedies for several ailments. Such plants are very useful especially to people who cannot afford modern medical care and in cases where access to modern heath facilities is not easy. Knowledge and use of herbal medicine for treatment of various ailments among the local people is still part of their life and culture and this calls for preservation of the integrity of the forest and indigenous knowledge of herbal medicine use. The documented plants have potential of being used in drug development.”
Read the complete article at PubMed Central.
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