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{{SPlantbox
{{SPlantbox
|genus=Nicotiana
|familia=Solanaceae
|genus=Nicotiana
|species=glauca
|species=glauca
|taxo_author=Graham
|common_name=tree tobacco
|origin=S America
|features=flowers, naturalizes
|flowers=yellow
|Temp Metric=°F
|Temp Metric=°F
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|jumpin=If this plant info box on watering; zones; height; etc. is mostly empty you can click on the edit tab and fill in the blanks!
|image=Upload.png
|image=Nicotiana-glauca-20080330.JPG
|image_width=240
|image_width=240
|image_caption=Nicotiana glauca
}}
}}
'''''Nicotiana glauca''''' is a species of [[Nicotiana|wild tobacco]] known by the common names '''tree tobacco''' and incorrectly also '''[[Salvadora persica|Mustard tree]]'''. Its leaves are attached to the stalk by [[Petiole (botany)|petioles]], and its leaves and stems are neither [[wiktionary:pubescent|pubescent]] nor sticky like ''[[Nicotiana tabacum]]''. 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, and it is a common roadside weed in the [[southwestern United States]].
{{Inc|
{{Inc|
Nicotiana glauca, Graham (N. arborea, Dietr.). Erect, tree-like, up to 20 ft. tall, glaucous-blue all over: st. branching: Lvs. long-petioled, unequally subcordate- ovate, acute, somewhat repand: fls. pedicelled, pedicels incurved in fr., in loose, terminal, bracted panicles; calyx tubular, 5-toothed. teeth acute, unequal, somewhat ciliate; corolla yellow, tube scarcely incurved, somewhat swollen above; mouth contracted, softly woolly; limb small, lobes ovate, very short, acute: caps, inclosed in the calyx. Argentina, Paraguay, Bolivia. B.M. 2837. G. 26:571.—Frequently cult, for its stately habit and striking glaucous-blue foliage which sometimes develops purplish tints. It has escaped from cult. and runs wild in Texas and Calif. Usually does not bloom in the northern states. Easily grown from seed.
Nicotiana glauca, Graham (N. arborea, Dietr.). Erect, tree-like, up to 20 ft. tall, glaucous-blue all over: st. branching: Lvs. long-petioled, unequally subcordate- ovate, acute, somewhat repand: fls. pedicelled, pedicels incurved in fr., in loose, terminal, bracted panicles; calyx tubular, 5-toothed. teeth acute, unequal, somewhat ciliate; corolla yellow, tube scarcely incurved, somewhat swollen above; mouth contracted, softly woolly; limb small, lobes ovate, very short, acute: caps, inclosed in the calyx. Argentina, Paraguay, Bolivia. B.M. 2837. G. 26:571.—Frequently cult, for its stately habit and striking glaucous-blue foliage which sometimes develops purplish tints. It has escaped from cult. and runs wild in Texas and Calif. Usually does not bloom in the northern states. Easily grown from seed.
}}
}}
==Cultivation==
===Propagation===
===Pests and diseases===
==Varieties==
==Gallery==
<gallery perrow=5>
Image:Nicotiana glauca.jpg
Image:Nicotiana glauca p1010102.jpg
Image:Nicotiana glauca0.jpg
Image:Upload.png| photo 1
Image:Upload.png| photo 2
</gallery>
== References ==
==References==
* [http://www.uky.edu/Ag/Tobacco/N_Species/N_glauca.html Picture of ''N. glauca'']
<references/>
*[http://www.pfaf.org/database/plants.php?Nicotiana+glauca Pants For A Future: ''Nicotiana glauca'']
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 -->
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 -->
<!--- xxxxx *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608 -->
==External links==
*{{wplink}}
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