Swampy vascular plants are important components of tropical ecosystems although barely studied in the Brazilian Northeast. This paper goals at the identification of vascular plants of Marimbus, a swampy area in the Chapada Diamantina, Bahia, discussing geographic distribution and biological specter aspects. It also presents a comparison with other floristic surveys in swampy areas. 130 species in 46 families were registered. The family Cyperaceae was the most abundant (15%), followed by Rubiaceae (10%), Poaceae (8%), Myrtaceae (7.6%), Leguminosae (6.8%) and Polygonaceae (3.8%). Amphibious plants are the most common ones (58%), the emergent, floating (fixed or free) and submerged ones make up to 39% of the flora, which presents 25% of nanophanerophytes, 13% of geophytes and 12% of microphanerophyte. Most species present neotropical distribution (34%), many are ruderal (17%) and some are multicontinental (9%). This flora is less dissimilar to that from Pantanal Matogrossense.
biological specter; floristic survey; geographic distribution; macrophytes
