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INTERNATIONAL CODE OF BOTANICAL NOMENCLATURE online
DIVISION II. RULES AND RECOMMENDATIONS
CHAPTER III. NOMENCLATURE OF TAXA ACCORDING TO THEIR RANK
SECTION 6. NAMES OF PLANTS IN CULTIVATION
28.1. Plants brought from the wild into cultivation retain the names that are applied to the same taxa growing in
Note 1. Hybrids, including those arising in cultivation, may receive names as provided in
App. I (see also Art. 11.9, 40, and
Note 2. Additional, independent designations for special categories of plants used in
agriculture, forestry, and horticulture (and arising either in nature or
cultivation) are dealt with in the International code of nomenclature for cultivated
plants, where the term "cultivar" is defined and regulations are provided for the formation and use of cultivar
Note 3. Nothing precludes the use, for cultivated plants, of names published in accordance with the requirements of the botanical
Note 4. Epithets in names published in conformity with the botanical Code may be used as cultivar epithets under the rules of the
International code of nomenclature for cultivated plants, when cultivar is considered to be the appropriate status for the groups
Ex. 1. Mahonia japonica DC. (1821) may be treated as a cultivar, which is then designated as
Mahonia 'Japonica'; Taxus baccata var. variegata Weston (1770), when treated as a
cultivar, is designated as Taxus baccata 'Variegata'.
Note 5. The International code of nomenclature for cultivated plants provides for the establishment of cultivar epithets differing markedly from epithets in Latin form.
Ex. 2. ×Disophyllum 'Frühlingsreigen'; Eriobotrya japonica 'Golden Ziad' and
E. japonica 'Maamora Golden Yellow'; Phlox drummondii 'Sternenzauber';
Quercus frainetto 'Hungarian Crown'.
Ex. 3. Juniperus ×pfitzeriana
'Wilhelm Pfitzer' (P. A. Schmidt 1998) was established for a tetraploid
cultivar presumed to result from the original cross between
J. chinensis L. and J. sabina L.
2006, by International Association for Plant Taxonomy. This page last updated