Welcome to the International Plant Names Index (IPNI)

IPNI provides nomenclatural data (spelling, author, types and first place/date of publication) for the scientific names of vascular plants from family to infraspecific ranks.

For any taxonomic data go to Plants of the World Online

IPNI is produced by a collaboration between

The nomenclatural data and name registration provided by IPNI is produced by a collaboration between The Royal Botanic Gardens, Kew, The Harvard University Herbaria and The Australian National Herbarium hosted by the Royal Botanic Gardens, Kew.

You can now register a plant name

Your contribution will help promote your work and make IPNI a more comprehensive plant name resource. Already registered? Log in to access your account.

REGISTER

New plant name

Add a name that is new to science whether it is a new taxon, a new combination or a replacement name.

REGISTER

Published plant name

Add a name that has already been published but is not yet in IPNI, whether it is a new taxon, a new combination or a replacement name.

1,433,000
Plant Names
18,500
Publications
55,100
Authors

New records are added daily, and the IPNI team are continuously working to improve data standardisation. IPNI provides links to protologues from the Biodiversity Heritage Library as well as links to taxonomic data (synonymy and native distribution) through Plants of the World Online.