A cultigen (from Latin cultus 'cultivated', and gens 'kind') or cultivated plant[note 1] is a plant that has been deliberately altered or selected by humans. These plants have commercial value in horticulture, agriculture or forestry. They are defined by their mode of origin and not by where they grow. Plants meeting this definition remain cultigens whether they are naturalised, deliberately planted in the wild, or grown in cultivation.
Cultigens arise in the following ways:
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