Diversité d’usages et Statut de conservation de Syzygium guineense (Willd.) DC. subsp. macrocarpum (Engl.) F. White (Myrtaceae) au Bénin

The objective of this study is to categorize the endogenous knowledge related to Syzygium guineense subsp. macrocarpum, a nectariferous plant in Benin, and to evaluate the impact of the use of different plant parts on its sustainability. The assessment of knowledge was based on the relative frequency of response, diversity index and equity index. In addition, the impact of different uses was measured by the degree of threat in the natural environment. Investigations identified many uses that have been categorized into 7 types, of which the most represented being energy (78%) and medicinal (51%). There is a significant variation in usage knowledge among ethnic groups (P-Value = 0.00). The degree of threat ranged from 15.17% to 46.39%. This study shows that S. guineense subsp. macrocarpum is a species for domestic, medicinal and oral use.