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Table 1 Details of taxonomic sources used by the TNRS

From: The taxonomic name resolution service: an online tool for automated standardization of plant names

Name Total names Taxonomic scope Geographic scope Primary URL
Tropicos    1,250,897 Embryophytes Comprehensive coverage of North, Central and South America; partial coverage of Old World, especially Madagascar, Aast Africa and China. http://www.tropicos.org/
USDA Plants    93,307 Embryophytes and lichens U.S. and its territories, Canada, Greenland http://plants.usda.gov/java/
Global Compositae Checklist     123,551 Asteraceae Global http://compositae.landcareresearch.co.nz/
NCBI Taxonomy     210,214 Embryophytes Global http://www.ncbi.nlm.nih.gov/taxonomy
  1. Total names includes higher taxa and infraspecific taxa in addition to species. Taxonomic scope refers to the subset of the database used for the TNRS (for example, NCBI Taxonomy covers the entire tree of life, not just embryophytes). "Embryophytes" are flowering plants, conifers, ferns, mosses, hornworts and liverworts.