Welcome to the International Plant Names Index (IPNI), the ultimate resource for nomenclatural data of vascular plants. Whether you're a researcher, botanist, or simply curious about plant names, IPNI has you covered. With over 1.

4 million plant names, 18,500 publications, and 55,100 authors, we offer a vast collection of information. IPNI provides accurate and comprehensive data on spelling, authors, types, and the first place/date of publication for scientific names. Our database covers everything from family to infraspecific ranks, ensuring that you have access to the most up-to-date taxonomic information.

This invaluable resource is made possible through a collaboration between The Royal Botanic Gardens, Kew, The Harvard University Herbaria, and The Australian National Herbarium. We are continuously adding new records and working to improve data standardization. In addition to the vast collection of plant names, IPNI also allows you to register new plant names or add published plant names, contributing to the expansion of our knowledge and making IPNI an even more comprehensive resource.

Explore IPNI today and delve into the fascinating world of plant names and taxonomy