28.1. Plants brought from the wild into cultivation retain the names that are applied to the same taxa growing in nature.
28.2. Hybrids, including those arising in cultivation, may receive names as provided in App. I (see also Art. 11.8, 40, and 50).
Note 1. Additional, independent designations for 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 regulations are provided for their formation and use. However, nothing precludes the use for cultivated plants of names published in accordance with the requirements of the present Code.
Note 2. Epithets in names published in conformity with this Code may be used as cultivar epithets under the rules of the International code of nomenclature for cultivated plants-1980, when this is considered to be the appropriate status for the groups concerned. The International code of nomenclature for cultivated plants-1980, in its Art. 27, requires new cultivar epithets published on or after 1 January 1959 to be fancy names markedly different from epithets of names in Latin form governed by the present Code.
Ex. 1. Cultivar names: Taxus baccata 'Variegata'
or Taxus baccata cv. Variegata (based on T. baccata
var. variegata Weston, Bot. Univ. 1: 292, 347. 1770), Phlox
drummondii 'Sternenzauber', Viburnum xbodnantense