Selective breeding produces cultivated varieties of plants within the same genus. Cultivars often use names following the genus, which are not based in Latin. For example, for a hybrid tea rose which is
black, it is called Rosa'Black Baccara'.

Binomial

Explanation:

The correct answer is - cultivar epithet.

Explanation:

Selective breeding results in cultivated varieties of plants of the same genus. These cultivated varieties are called cultivar names. This cultivar name consists of the scientific Latin botanical genus name followed by a name called as cultivar epithet.

Vernacular language is the full cultivar epithet of the species such as an example given here of herbal hybrid tea called Rosa 'Black Baccara'.

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