Nicotiana alata is a species of tobacco. Nicotiana glauca is a species of wild tobacco known by the common name tree tobacco. "Nicotiana sylvestris" is cultivated as an ornamental plant. Its botanical name is "Nicotiana rustica". "Nicotiana rustica" is the most potent strain of tobacco known. This species was preferable to the native nicotiana rustica as it was much smoother. "insularis", "Nicotiana stocktonii", "Spermacoce nesiotica" and "Zapoteca formosa" ssp. Nornicotine is an alkaloid found in various plants including "Nicotiana", the tobacco plant. "Nicotiana" contains, among other species, tobacco. Many species of tobacco are in the genus of herbs "Nicotiana". The Takelma cultivated only one crop, a native tobacco ("Nicotiana biglovii"). Tobacco is the agricultural product of the leaves of plants in the genus "Nicotiana". In tobacco ("Nicotiana tabacum"), wide crossing with "Nicotiana africana" is widely used. The flowers are medium-sized, fragrant ("Nicotiana"), fetid ("Anthocercis"), or inodorous. In central Australia, various species of wild "Nicotiana", not "Duboisia hopwoodii", are used.