Nicotiana glauca
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glauca > |
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Read about Nicotiana glauca in the Standard Cyclopedia of Horticulture
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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.
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Nicotiana glauca is sometimes referred to as Mustard Tree or Brazilian Tree Tobacco or simply 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 grows to heights of more than 6' (2m).
Originally from Bolivia and Argentinia, tree tobacco has naturalized in the southwestern United States, becoming a common weed. This plant is used as a medicinal plant.
