The difficulties associated with effective weed control methods are conditioned by the biology and ecology of the weed species present. With a view to the sustainable control of weeds, we have been interested in understanding the main biological characteristics of Porophyllum ruderale, an invasive weed recently observed in various forest regions, including the Mé region. What potential does this exotic species have for adapting to new environmental conditions? To do this, the biological cycle was observed and experiments were carried out on plots that had been heavily weeded by this weed. The data collected was processed using Excel and XlSat software (Kruskal-Wallis, Mann Whitney, PCA). The germination capacity of Porophyllum ruderale was 80%, with 55% emergence in the first week (7 days). For a life cycle of approximately 6 months, average seed production is estimated at 68,931.400 ± 34,419.749 seeds/individual and the average size of individuals is 288 ± 61.776 cm. Although the seeds of this weed are highly volatile (dispersed by the wind), it has a storage potential in the soil. This is estimated at between 4,514 and 5,381 seeds/m2. The biological characteristics of this weed are better known and this work has shown that Porophyllum ruderale has developed exceptional capacities for acclimatisation in this region.