Coefficient of Conservatism:
Coefficient of Wetness:
R. W. Smith
Probably originating in South America, but early spread by Native Americans (who cultivated it) into North America. Our few collections are all from disturbed places, the first from Washtenaw Co. in 1884, but not found after 1927 (Ingham Co.).
This species has wingless petioles, while the tobacco that has replaced it in cultivation, N. tabacum, has short winged petioles or sessile decurrent leaves. Nicotiana rustica has a higher nicotine content and was cultivated in Europe even before N. tabacum.