International Plant Name Index (IPNI)

Please note: Due to the ongoing COVID-19 crisis, IPNI currently has a much reduced staff and resources. So it may take longer for newly published names to go online and we would ask you to refrain from sending feedback at this time and only send it when we return to full capacity which will not be before 1st of June 2020.

Welcome to the International Plant Names Index (IPNI) produced by a collaboration betweenThe Royal Botanic Gardens, Kew,The Harvard University Herbaria, andThe Australian National Herbarium, hosted by the Royal Botanic Gardens, Kew. IPNI provides nomenclatural information (spelling, author, types and first place and date of publication) for the scientific names of Vascular Plants from Family down to infraspecific ranks. You can search for plant names, authors or publications in the search box above. Click the down arrow for advanced search options. New records are added daily, and the IPNI team are continuously working to improve datastandardization.

IPNI provides links to protologues in online articles or page scans from theBiodiversity Heritage Library as well as links to taxonomic data (synonymy and native distribution) through thePlants of the World Online.

If you have any questions, comments or feedback the team would be happy to hear from you by email atipnifeedback@kew.org