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Ethnopharmacological relevance This paper illustrates the results of an ethnobotanical study carried out in the Vesuvio National Park (VNP) (Campania, Southern Italy). It describes the medicinal uses of the plants in an ancient area rich in ethnobiodiversity investigated for the first time. Aim for the study The main aim of the study was to understand at what extent current knowledge on medicinal plant uses is still alive in VNP. Materials and methods The informations were collected using semi-structured and unstructured interviews performed on 136 persons living in the investigated area from March to November 2014 and from April to October 2015. The age of the informants ranged from 47 to 85 years old; more than half of the informants aged between 61 and 70. Local plant uses were listed and analyzed in a table and compared with uses in other localities in Italy and in other regions of the Mediterranean basin. Results In VNP were recorded a total number of 132 plant species, belonging to 110 genera and 51 families mentioned for medicinal purposes. Among the recorded 132 plant species, 70 are spontaneous or subspontaneous and 62 are cultivated above all in the kitchen gardens or in the apartments, as food or as ornamental. Herbs represent the majority, followed by trees and shrubs or subshrubs. The investigated plants were used to cure 116 different human health diseases and 4 veterinary problems. The majority of plants are used in the treatment of gastrointestinal, skin and respiratory problems. Conclusion The number of medicinal plants reported in this paper reflects a well-preserved traditional popular knowledge (TPK) of the elderly people living in the rural areas and in the small villages of VNP. The conservation of TPK is owed to the persistence of an oral tradition that safeguard the use of plants as herbal medicine. We realized that while the use of some wild plants is decreasing, people continue to gather some cultivated and invasive plants for preparing remedies. Researches like this are necessary to protect ancient memories, to promote the transfer of information to the younger generations, to preserve ethno-biodiversity and to provide a starting point fur further biochemical investigations on medicinal entities. [ABSTRACT FROM AUTHOR]

Ethnopharmacological relevance The area of the Nebrodi Regional Park (North-Eastern Sicily, Italy) has been quantitatively investigated in an ethnobotanical study for the first time. A total of 90 wild species are used for medicinal purposes and the uses of 5 species have not previously been reported in ethnobotanical studies in Italy (e.g., the use of Arisarum vulgare O. Targ. Tozz. for the treatment of rheumatic pains, the use of Silene vulgaris (Moench) Garcke for the treatment of liver diseases). The aim of this paper was to understand to what extent current knowledge on the medicinal use of plants is still an element of the culture within the rural populations of the Nebrodi Park. Materials and methods Semi-structured interviews were carried out in the local communities within the Nebrodi Regional Park with local people retained experts in rural traditions. A total of 226 people over the age of 60 were interviewed. Local plant uses were evaluated using ethnobotanical indices (e.g., cultural importance index, index of ethnobotanical diversity, informant consensus factor) and then compared with uses in other localities in Sicily, Italy and the Mediterranean area. Results Local communities use a total number of 90 wild species belonging to 44 plant families as medicinal remedies. The majority of the species are used as treatments against gastrointestinal system. The cultural importance index showed that Malva sylvestris (1.31) and Clinopodium nepeta (0.86) are the most important species to the Nebrodi area in terms of medicinal use. The use of Brassica rupestris Raf. for therapeutic purposes is limited to Sicily and it is an innovative finding of this study. Conclusions The research shows an ongoing process of cultural erosion in an advanced stage, but quantitative indices still highlight only for those species was a natural remedy deemed highly effective. [ABSTRACT FROM AUTHOR]