Datura inoxia
Mill.
Solanaceae
The species name is sometimes spelt Datura innoxia.
Datura guayaquilensis Kunth
Datura meteloides Dunal
Datura velutinosa V.R.Fuentes
Common Name: Downy Thorn Apple
General Information
Downy thorn apple is an annual plant growing about 1 metre tall.
The plant is gathered from the wild and used locally for various medicinal properties. It is a commercial source of the alkaloid scopolamine, which is used in the pharmaceutical industry[
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
].
Known Hazards
All members of this genus contain narcotics and are very poisonous, even in small doses[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Botanical References
71- Title
- A California Flora.
- Publication
-
- Author
- Munz P.A. & Keck D.D.
- Publisher
- University of California Press; Los Angeles
- Year
- 1959
- ISBN
- -
- Description
- An excellent flora but no pictures. Not for the casual reader.
,
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
Range
South-western N. America to Central America.
Habitat
Sandy or gravelly dry open places at elevations below 1,200 metres in California[
71- Title
- A California Flora.
- Publication
-
- Author
- Munz P.A. & Keck D.D.
- Publisher
- University of California Press; Los Angeles
- Year
- 1959
- ISBN
- -
- Description
- An excellent flora but no pictures. Not for the casual reader.
].
Properties
Edibility Rating |  |
Medicinal Rating |    |
Habit | Annual |
Height | 1.00 m |
Pollinators | Insects |
Cultivation Status | Wild |
Cultivation Details
A plant of subtropical to tropical areas. It is not very cold-hardy, tolerating temperatures down to about -5°c[
260- Title
- Conservatory and Indoor Plants Volumes 1 & 2
- Publication
-
- Author
- Phillips. R. & Rix. M.
- Publisher
- Pan Books, London.
- Year
- 1998
- ISBN
- 0-330-37376-5
- Description
- Excellent photos of over 1,100 species and cultivars with habits and cultivation details plus a few plant uses. Many species are too tender for outdoors in Britain though there are many that can be grown outside.
].
Prefers a rich light sandy soil[
1- Title
- RHS Dictionary of Plants plus Supplement. 1956
- Publication
-
- Author
- F. Chittendon.
- Publisher
- Oxford University Press
- Year
- 1951
- ISBN
- -
- Description
- Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaced in 1992 by a new dictionary (see [200]).
] and an open sunny position[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
]. It is best grown in a fertile calcareous soil[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
This species is extremely susceptible to the various viruses that afflict the potato family (Solanaceae), it can act as a centre of infection so should not be grown near potatoes or tomatoes[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
Edible Uses
Fruit - ground up and mixed with clay[
161- Title
- Food Plants of the N. American Indians. Publication no. 237.
- Publication
-
- Author
- Yanovsky. E.
- Publisher
- U.S. Depf of Agriculture.
- Year
-
- ISBN
- -
- Description
- A comprehensive but very terse guide. Not for the casual reader.
] ( the clay probably has a neutralizing effect on the toxins). A very toxic plant, its use as a food cannot be recommended[
K- Title
- Plants for a Future
- Author
- Ken Fern
- Description
- Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The fruit is up to 5cm long and 7cm wide[
200- Title
- The New RHS Dictionary of Gardening. 1992.
- Publication
-
- Author
- Huxley. A.
- Publisher
- MacMillan Press
- Year
- 1992
- ISBN
- 0-333-47494-5
- Description
- Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].
A stupefying beverage is made from the leaves and roots[
161- Title
- Food Plants of the N. American Indians. Publication no. 237.
- Publication
-
- Author
- Yanovsky. E.
- Publisher
- U.S. Depf of Agriculture.
- Year
-
- ISBN
- -
- Description
- A comprehensive but very terse guide. Not for the casual reader.
].
Medicinal
All parts of the plant are anodyne, antispasmodic, hallucinogenic, hypnotic and narcotic[
192- Title
- Narcotic Plants
- Publication
-
- Author
- Emboden. W.
- Publisher
- Studio Vista
- Year
- 1979
- ISBN
- 0-289-70864-8
- Description
- A lot of details about the history, chemistry and use of narcotic plants, including hallucinogens, stimulants, inebriants and hypnotics.
,
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
]. It has been used in the past as a pain killer and also in the treatment of insanity, fevers with catarrh, diarrhoea and skin diseases[
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
]. The plant contains several alkaloids, the most active of which is scopolamine[
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
]. This is a potent cholinergic-blocking hallucinogen, which has been used to calm schizoid patients[
213- Title
- Earth Medicine, Earth Food.
- Publication
-
- Author
- Weiner. M. A.
- Publisher
- Ballantine Books
- Year
- 1980
- ISBN
- 0-449-90589-6
- Description
- A nice book to read though it is difficult to look up individual plants since the book is divided into separate sections dealing with the different medicinal uses plus a section on edible plants. Common names are used instead of botanical.
]. The leaves contain 0.52% scopolamine, the calices 1.08%, the stems 0.3%, the roots 0.39%, the fruits 0.77%, the capsules 0.33%, the seeds 0.44% and the whole plant 0.52 - 0.62%[
240- Title
- Glossary of Indian Medicinal Plants (Including the Supplement).
- Publication
-
- Author
- Chopra. R. N., Nayar. S. L. and Chopra. I. C.
- Publisher
- Council of Scientific and Industrial Research, New Delhi.
- Year
- 1986
- ISBN
- -
- Description
- Very terse details of medicinal uses of plants with a wide range of references and details of research into the plants chemistry. Not for the casual reader.
]. Any use of this plant should be with extreme caution and under the supervision of a qualified practitioner since the toxic dose is very close to the medicinal dose.
Other Uses
None known
Propagation
Seed - best pre-soaked for twelve hours in warm water before sowing. Seed can be sown in situ, or in a nursery seedbed. Germination takes 14 - 30 days[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
]. If the seed is sown in a nursery, then seedlings are transplanted into their final positions when 8 - 12 cm tall[
299- Title
- Protabase - Plant Resources of Tropical Africa.
- Publication
-
- Author
-
- Website
- http://www.prota.org
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- An excellent on-line database with detailed information on over 3,200 species of useful plants of Africa.
].
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