The Annonaceae have a pantropical distribution and consist of about 130 genera and 2500 species. They are trees, shrubs, woody or rarely scandent herbs. The family is characterized by simple, dystic, entire leaves, and absence of stipules. Bisexual flowers; stamens with a spiral arrangement, truncated connective and dilated over the anthers, multipistillate gynogenes, and variegated endosperm. They are used in food, home medicine, in the box industry, in agricultural implements and in civil construction. The present work aims to carry out a taxonomic study and an ethnobotanical investigation of the species used by the inhabitants of the municipality of Barcarena/PA. For the ethnobotanical study, interviews were conducted with members of some communities in the municipality. For the taxonomic study, the species mentioned in the interviews were collected, identified, registered and incorporated into the collection of the João Murça Pires Herbarium, of the Botany Coordination of the Emilio Goeldi Museum of Pará. The species with common use in food and home medicine are: the ata (Annona squamosa L.), the araticum (Annona montana Mad), the graviola (Annona muricata L.) and the biribá (Rollinia mucosa Bail). Others used in household medicine and other activities are: envira branca (Duguetia marcgraoiana Mart ), envira preta (Guatleria schomburgkiana Mart) and envira cheirosa (Annona paludosa Aubl.).
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