The International Code of Nomenclature for Cultivated Plants (ICNCP) regulates the names of cultigens, that is, those plant names in the classification categories cultivar, Group and grex (as denoted in the 2009 ICNCP). Examples are:

• Clematis alpina 'Ruby' : a cultivar within a species
• Magnolia 'Elizabeth' : a hybrid between at least two species
• Rhododendron boothii Mishmiense Group: a Group name
• +Crataegomespilus : a graft-chimaera of Crataegus and Mespilus
• Paphiopedilum Sorel grex: a grex name

The ICNCP operates within the framework of the International Code of Botanical Nomenclature which regulates formal names for plants in general. On the other hand, orchids have a Code of their own that operates within the limits set by the ICNCP.

Note that the ICNCP does not regulate trademarks for plants: trademarks are regulated by the law of the land involved. Nor does the ICNCP regulate the naming of plant varieties.

[edit] See also

• Cultivated plant taxonomy
• International Cultivation Registration Authority
• Cultigen

[edit] External links

• Publisher's page for International Code of Nomenclature for Cultivated Plants, 8th edition (October 2009);
• Adams, Denise (2000) "Language of Horticulture" Department of Horticulture and Crop Science, Ohio State University from Web Archive;