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Nicotiana_glauca - Graham.

Common Name Tree Tobacco
Family Solanaceae
USDA hardiness 7-10
Known Hazards All parts of the plant are poisonous[200].
Habitats Rocks, walls and roadsides in the Mediterranean[50].
Range S. America - S. Bolivia to N. Argentina. Naturalized in the Mediterranean.
Edibility Rating    (1 of 5)
Other Uses    (0 of 5)
Weed Potential Yes
Medicinal Rating    (2 of 5)
Care
Frost Hardy Moist Soil Full sun
Nicotiana_glauca Tree Tobacco


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Nicotiana_glauca Tree Tobacco
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Summary


Physical Characteristics

 icon of manicon of shrub
Nicotiana_glauca is an evergreen Shrub growing to 3 m (9ft) by 3 m (9ft).
It is hardy to zone (UK) 8 and is frost tender. It is in leaf all year, in flower from August to October, and the seeds ripen from September to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Lepidoptera (Moths & Butterflies).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils and prefers well-drained soil. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It prefers moist soil.

Synonyms

Habitats

Edible Uses

The leaves have been made into a drink[257]. Some care should be exercised here. The tea will contain nicotine, and this can be toxic to the body. There is some evidence that Nicotiana glauca may have led to accidental poisoning when it was mistaken for other plants. We would recommend that ingestion is not considered. Please see the warning in Known Hazards.

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.



A poultice of the leaves can be applied to cuts, bruises, swellings and other wounds[257]. The plant has been used as a poultice for removing the pus from scrofulous sores or boils[257]. A poultice of the leaves has been applied to inflamed throat glands[257]. An infusion of the leaves has been used as a steam bath in the treatment of rheumatism[257].

Other Uses

All parts of the plant contain nicotine, this has been extracted and used as an insecticide[46, 61].

Cultivation details

Prefers a well-drained deep rich moist soil in a sunny position[1, 200]. This species is hardy to about -5°c[200]. Plants can survive the winter outdoors in the milder parts of Britain, though they usually act as herbaceous perennials in such conditions[200]. Plants require more than 14 hours daylight per day in order to induce flowering[169].

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Propagation

Seed - surface sow in a warm greenhouse about 10 weeks before the last expected spring frosts. The seed usually germinates in 10 - 20 days at 20°c. Keep the soil moist and pot up as soon as the plants are big enough to handle, planting them out after the last expected frosts.

Other Names

If available other names are mentioned here

Found In

Countries where the plant has been found are listed here if the information is available

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Conservation Status

IUCN Red List of Threatened Plants Status :

Related Plants

 

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Expert comment

Author

Graham.

Botanical References

200

Links / References

For a list of references used on this page please go here

Readers comment

F. Goffman   Thu Mar 23 2006

N. glauca main alkaloid is not nicotine but anabasine

jahn   Wed Dec 3 2008

it would be good to know how deep the roots of the plant are, there seems to be little online that provides this information.

Alicia   Wed Feb 18 2009

Alicia we Feb 2009 more on insects will be much better especially its effects on pests.

john.   Sat Aug 15 2009

Like F. Goffman said it doesn't contain that much nicotine if any at all, mostly Anabasine.

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