Abstract
This study aims to contribute to the knowledge of Typhaceae Juss. family species occurring in the state of Rio de Janeiro. The work is based on the morphological analysis of materials deposited in herbarium collections and field, besides the literature data collection. One was recorded species: Typha domingensis. Descriptions, illustrations, data on habitat and geographical distribution of the species are presented.
Key words:
Brazil's Southeast; taxonomy; aquatic plant; cattail