He had brought with him a new species of tobacco known as nicotiana tabacum. It was discovered in "Nicotiana tabacum", which is a species of cultivated tobacco. The genus contains a number of species, however, "Nicotiana tabacum" is the most commonly grown. This is a list of diseases of tobacco ("Nicotiana tabacum"). Recorded food plants include "Aster", "Erigeron canadensis", "Nicotiana tabacum" and "Solidago". In tobacco ("Nicotiana tabacum"), wide crossing with "Nicotiana africana" is widely used.