Get reliable rangeland science

The Index Nominum Supragenericorum Plantarum Vascularium Project is a joint effort between the International Association for Plant Taxonomy, the University of Maryland, and Cornell University.
The purpose of the project is to capture all valid and legitimate extant vascular plants names, as defined by the International Code of Botanical Nomenclature, proposed above the rank of genus. These data are dynamic and constantly being updated. At any one time, the listing of a name means only that it is the earliest, valid place of publication found to date.