Forensic Palynology is an important tool to resolve the place and sometimes the season of the year of a fact. The palynomorphs may be in different objects (clothes, shoes, ropes). Pollen morphology is sometimes exclusive for a plant species and some of them grow in specific areas besides plants produce pollen at certain times of the year. The study was based on field work and monitoring seasonal wild communities near Punta Lara reserve. This paper describes the pollen morphology of the representative species which grow in this zone of wetlands from Buenos Aires, Argentina and can be representative of the landscape of the region.