An interface to the Integrated Taxonomic Information System (ITIS)
See also the taxize book (https://taxize.dev/) for a manual on working with taxonomic data in R, including with ITIS data.
How to cite ITIS. From https://itis.gov/citation.html
To cite data obtained from ITIS, the following citation format is offered as a suggestion:
Retrieved [month, day, year], from the Integrated Taxonomic Information System on-line database, http://www.itis.gov.
ITIS is one of many different taxonomic data sources. Other include: Catalogue of Life (and COL+), NCBI taxonomy, International Plant Names Index, Index Fungorum, and more. The Wikipedia entry (https://en.wikipedia.org/wiki/Integrated_Taxonomic_Information_System) states that ITIS has a North American focus, but includes many taxa not in North America.
Install from CRAN
Or install the development version from GitHub
There are four methods.
These four methods use the equivalent functions in the package
solrium::solr_search(), etc. The
itis_*() functions simply use
... to allow users to pass on parameters to the wrapped
solrium functions. So do read the
ITIS Solr API docs: https://www.itis.gov/solr_documentation.html
matches only monomials
matches only binomials
The syntax for
itis_search() can be a bit hard to grasp. See this ITIS page https://itis.gov/solr_examples.html for help on generating the syntax they want for specific searches.
ITIS REST API docs: http://www.itis.gov/ws_description.html
The following are some example uses. There are many more methods not shown below
Get accepted names for a TSN
Get common names for a TSN
Full hierarchy for a TSN