This study is carried out in 5 relatively better preserved sacred forests and aims to evaluate the diversity and the potential for natural regeneration of the woody stratum. Flower and dendrometric surveys are carried out in 3 plots of 50 m x 50 m installed in each of the sacred forests randomly and according to the homogeneity of the vegetation. The Shannon diversity and Pielou equitability indices, as well as the ANOVA test, are calculated from the PAST 4.10 software, were used to assess floristic diversity; the ecological importance of species and families was assessed from the calculations of the Importance Value Indices (IVI). There are 72 species in 59 genera and 23 families. The values of the diversity indices are from 2.53 to 2.90 bits for the Shannon index; from 0.62 to 0.84 for the Equitability of Pielou. Density ranges from 448.00 to 1046.70 individuals/ha and basal area ranges from 639.16 m2/ha to 759 m2/ha per forest surveyed. The most regular species are Combretum collinum Fresen., Detarium microcarpum Guill. and Perr., Anogeissus leiocarpa (DC) Guill. and Perr., Vitellaria paradoxa C.F. Gaertn., Prosopis africana (Guill. and Perr.) Taub. The sacred areas of Hori and Koutou are in a better state of conservation. Regeneration is low and woody stands are subject to increased degradation due to anthropogenic pressure due to a loss of authority from traditional chiefs.