The main physical factors influencing the diversity of phytocenoses are the climate and geomorphology. The latter’s various aspects can modify, for example, the spatiotemporal structure of the temperature, rainfall, humidity and evaporation. These changes result in a set of biotopes whose varied biocenotic responses correspond to a dense floristic mosaic. Among these responses, due to their small size, the vegetation inversions represent specific cases. To demonstrate this phenomenon, we used 73 stations of Martinique’s lower level influenced by the dry sub-humid bioclimate and occupying each of the specific topographic facies. Using indicators and a multifactorial treatment (AFC), the data from the floristic inventories revealed the existence of a station whose flora is composed of mesophilous (evergreen tropical seasonal) species typical of the wet or even wet sub-humid bioclimate.