https://www.itis.gov/
Welcome to ITIS, the Integrated Taxonomic Information System! Here you will find authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world. We are a partnership of U.S., Canadian, and Mexican agencies (ITIS-North America); other organizations; and taxonomic specialists. ITIS is also a partner of Species 2000 and the Global Biodiversity Information Facility (GBIF). The ITIS and Species 2000 Catalogue of Life (CoL) partnership is proud to provide the taxonomic backbone to the Encyclopedia of Life (EOL).
For each scientific name, ITIS will include the authority (author and date), taxonomic rank, associated synonyms and vernacular names where available, a unique taxonomic serial number, data source information (publications, experts, etc.) and data quality indicators. Expert reviews and changes to taxonomic information in the database will be tracked. Geographic coverage will be worldwide with initial emphasis on North American taxa. The TWG is coordinating its efforts with several national and international biodiversity programs.
ITIS will be a significant contribution to the scientific infrastructure that is fundamental to the description, conservation, and management of the nation's biodiversity. Use of the ITIS and the taxonomic serial numbers will facilitate sharing of biological information among researchers and cooperating agencies by providing a common framework for taxonomic data. Agencies that typically cannot afford to maintain taxonomic data will have access to high quality taxonomic information through ITIS. This project allows the coordination of efforts among federal agencies, thereby increasing productivity and saving resources.