Wild tobacco is originally coming from the southwestern United States, Mexico, and parts of South America. It has a botanical name: Nicotiana rustica. In Australia it is named “Nicotiana benthamiana” and “Nicotiana gossei”.
Those are two of several indigenous tobaccos that are still used by Aboriginal people in a few areas. “Nicotiana rustica” is the strongest tobacco type known. It is commonly used for tobacco dust or pesticides.