Germplasm Resources Information Network
Germplasm Resources Information Network or GRIN is an online software project of National Genetic Resources Program of USDA to comprehensively manage the computer database for the holdings of all plant germplasm collected by the NPGS.
The site is a valuable resource for identifying taxonomic information (scientific names) as well as common names on more than 500,000 accessions (distinct varieties, cultivars etc.) of plants covering 10,000 species, both economically important ones and wild species. It profiles plants that are invasive or noxious weeds, threatened or endangered, giving out data on worldwide distribution of its habitat; as well as passport information. GRIN also incorporates an Economic Plants Database.
The network is maintained by GRIN's Database Management Unit (GRIN/DBMU). GRIN is under the oversight of National Germplasm Resources Laboratory (NGRL) in Beltsville, Maryland, which in 1990 replaced its forerunner, the Germplasm Services Laboratory (GSL), that had formerly run GRIN).
A stated mission of GRIN is to support the following projects:
- National Plant Germplasm System (NPGS)
- National Animal Germplasm Program (NAGP)
- National Microbial Germplasm Program (NMGP)
- National Invertebrate Germplasm Program (NIGP)
See also 
- The department's Natural Resources Conservation Service (NRCS) maintains a PLANT database
- National Germplasm Resources Laboratory
- National Research Council (U.S.); Committee on Managing Global Genetic Resources: Agricultural Imperatives (1991). The U.S. National Plant Germplasm System. National Academies Press. ISBN 0309043905., p.139-
- "About us". Agricultural Resource Service. 11/05/2009. Retrieved June 2012.
- Lipscomb, Barney L.; Pipoly, John James; Sanders, Roger William (2000). Floristics in the New Millennium: Proceedings of the Flora of the Southeast US Symposium 18. BRIT Press. ISBN 1889878049., p.90
- Miller, William; Pellen, Rita M. (2006). Evolving Internet Reference Resources 1. Psychology Press,. ISBN 078903025X., p.386, gives 450,000 accessions (outdated; grin gives 500,000 as of Jun-2012)
- "Accession Area Queries". Germplasm Resources Information Network. Retrieved June 2012., gives 500,000 accessions
- Ullrich, Steven E. (2011). Barley: Production, Improvement, and Uses. NJohn Wiley & Sons. ISBN 9780813801230., p.149
- National Research Council (U.S.).; Committee on Managing Global Genetic Resources: Agricultural Imperatives (1991). The U.S. National Plant Germplasm System. National Academies Press. ISBN 0309043905., p.6, 96
- "About GRIN". Germplasm Resources Information Network. Retrieved June 2012.