Plants associated with aquatic and marshy environments in the state of Paraiba, northeastern Brazil

We present a list of aquatic and wetland plant species from the state of Paraiba, Brazil, based on the collections deposited in national and international herbaria. We identified 290 species belonging to 61 families. The checklist includes habit, localities of the collections in the state of Paraiba, and geographic distribution of each species. The amphibious habit was the most prevalent and the Sertao (semiarid inland region) was the region with the greatest collection effort. New occurrences have been registered for the state (14 species). Although our data reveal a high plant richness, we relate this richness to increased field expeditions.