These are data on collections from Peru and our series of floristic inventories supported by National Geographic Society and National Science Foundation. Specifically, the database contains the specimen-label information from over 23,000 collections from northern Peru (Departments Amazonas, Ancash, Cajamarca, Piura, Lambayeque, La Libertad, San Martín). This database covers an area designated as a biodiversity hotspot and is exceptionally robust, in that the determinations of constituent records were largely provided by taxonomic experts. The database is used for generating labels, checklists, exsiccatae, and statistics.