Nicotiana glauca  Tree Tobacco
                    Family  
                            Solanaceae
                    
                    Genus 
                            Nicotiana   
        
                    Species 
                            glauca   
        
                    
                    Nicotiana glauca is a species of wild tobacco known by the common name tree
            tobacco. Its leaves are attached to the stalk by petioles (many other Nicotiana species
            have sessile leaves), and its leaves and stems are neither pubescent nor sticky like
            Nicotiana tabacum. It resembles Cestrum parqui but differs in the form of leaves and
            fusion of the outer floral parts. It grows to heights of more than two meters. Tree
            tobacco is native to South America but it is now widespread as an introduced species on
            other continents. It is a common roadside weed in the southwestern United States, and an
            invasive plant species in California native plant habitats. The plant is used for a
            variety of medicinal purposes and smoked by Native American groups. The Cahuilla Indians
            used leaves interchangeably with other tobacco species in hunting rituals and as a
            poultice to treat swellings, bruises, cuts, wounds, boils, sores, inflamed throat, and
            swollen glands. Contains the toxic alkaloid anabasine. Ingestion of the leaves can be
            fatal. It is being investigated for use as a biofuel.