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Solanum nigrum

Common name:	Black Nightshade	Family:	Solanaceae
Author:	L.	Botanical references:	17, 200
Synonyms:
Known Hazards:	There is a lot of disagreement over whether or not the leaves or fruit of this plant are poisonous. Views vary from relatively poisonous to perfectly safe to eat. The plant is cultivated as a food crop, both for its fruit and its leaves, in some parts of the world and it is probably true to say that toxicity can vary considerably according to where the plant is grown and the cultivar that is being grown[4, 7, 10, 13, 65, 76]. The unripe fruit contains the highest concentration of toxins[65].
Range:	Found throughout most of the world, including Britain.
Habitat:	Uncultivated and waste land[7]. It is a common garden weed.
Edibility Rating (1-5):	2	Medicinal Rating (1-5):	2

Other Possible Synonyms:	From various places across the web, may not be correct. See below.
	S. americanum[B] S. americanum auct. non[P] S. nigra[E] S. nigrum auct. non[P] S. ptychanthum[B,P] S. rubrum[B] S. rubrum auct. non[P]
Other Common Names:	From various places around the Web, may not be correct. See below.
	Alaman [E], Black Nightshade [H,P,E,L], Common Nightshade [L], E'Nab Adh Dhib [E], E'Nab Ath Tha'Lab [E], Enab Ez Zhib [E], European Black Nightshade [B], Gurkamai [E], Hierba Mora [E], Inu-Hozuki [E], Ituzumu [E], L'Homme [E], Lanman [E], Lanman Noir [E], Lanment [E], Lao Ya Yen Ching Ts'Ao [E], Long Kui [E], Lung K'Uei [E], Manman Lanman [E], Morelle Noir [E], Morelle Noire [E], Morete [E], Nightshade [P], Nightshade,Black [E], Ranti [E], Solatro Nero [E], T'Ien Ch'Ieh Tzu [E], T'Ien P'Ao Ts'Ao [E], Terong Meranti [E], West Indian Nightshade [B], Yerba Mora [E], Zwarte Nachtschade [D],
Epithets:	From a Dictionary of Botanical Epithets
	nigrum = black;
Systematics:	From a USDA Plants Database
	Order: Solanales. Potato family
Other Range Info:	From the Ethnobotany Database
	Bahamas; Belgium; China; Dominican Republic; Egypt; France; Guiana; Haiti; Hawaii; India; India(Gujarat); Indochina; Iraq; Italy; Java; Lesotho; Malaya; Mexico; Morocco; Pakistan; Panama(Choco); Panama(Cuna); Philippines; Spain; Sudan; Trinidad; Tunisia;
Noxious, Invasive and Injurious Weeds	From USDA PLANTS database, Weeds Australia , DEFRA Injurious Weeds
	Listed as noxious/invasive for: Colorado, Minnesota.

Physical Characteristics

Annual growing to 0.6m by 0.3m . . It is in flower from July to September, and the seeds ripen from August to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Insects. We rate it 2/5 for edibility and 2/5 for medicinal use.

The plant prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The plant prefers acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It requires dry or moist soil.

Habitats and Possible Locations

Cultivated Beds.

Edible Uses

Fruit; Leaves.

Fruit - cooked[2, 27, 89, 179]. Used in preserves, jams and pies[183]. A pleasant musky taste[85]. Somewhat like a tomato, but much less pleasant, it improves slightly after a frost[K]. Only the fully ripe fruits should be used, the unripe fruits contain the toxin solanine[65, 173, 183]. The fruit contains about 2.5% protein, 0.6% fat, 5.6% carbohydrate, 1.2% ash[179]. The fruit is about 9mm in diameter[200].
Young leaves and new shoots - raw or cooked as a potherb or added to soups[2, 27, 85, 89, 173, 179, 183]. This plant is cultivated as a leaf crop in some areas, but see the notes at the top of the page regarding possible toxicity.

Composition

Leaves (Fresh weight): In grammes per 100g weight of food:
Water: 86.4 Calories: 42 Protein: 4 Fat: 0.7 Carbohydrate: 7.6 Fibre: 1.6 Ash: 1.7
In milligrammes per 100g weight of food:
Calcium: 210 Phosphorus: 70 Iron: 5 VitaminA: 2000 Thiamine: 0.15 Riboflavin: 0.15 Niacin: 1.2 VitaminC: 43
Source: [218]
Notes : The figures given here are the median of a wide range given in the report.

Medicinal Uses

Disclaimer

Antiperiodic; Antiphlogistic; Diaphoretic; Diuretic; Emollient; Febrifuge; Narcotic; Purgative; Sedative.

The whole plant is antiperiodic, antiphlogistic, diaphoretic, diuretic, emollient, febrifuge, narcotic, purgative and sedative[4, 21, 145, 147, 192, 218]. It is harvested in the autumn when both flowers and fruit are upon the plant, and is dried for later use[4]. Use with caution[21], see notes above on toxicity.
The leaves, stems and roots are used externally as a poultice, wash etc in the treatment of cancerous sores, boils, leucoderma and wounds[218, 257].
Extracts of the plant are analgesic, antispasmodic, anti-inflammatory and vasodilator[218]. The plant has been used in the manufacture of locally analgesic ointments and the juice of the fruit has been used as an analgesic for toothaches[7].

Other Uses

Soil reclamation.

This species has been found to be effective in removing PCB's from the soil and detoxifying them[248]. The plant is more effective in doing this if it is infected with the bacterial parasite Agrobacterium tumefaciens[248].

Cultivation details

Succeeds in most soils[1]. Dislikes shade[1]. Flowers are formed on the old wood[206]. Very tolerant of dry conditions[206].
Caterpillars and slugs are particularly fond of this plant and can totally destroy it[K].
Grows well with clover[18]. Does not grow well with wormwood or white mustard and, when these plants are growing close to S. nigra, they increase its content of toxic alkaloids[18].
Some forms of this plant are cultivated for their edible fruits or leaves[200], see notes about possible toxicity at the top of this page. The leaves of one form are sold in local markets in Greece[148].

Propagation

Seed - sow spring in situ.
The seed can also be sown in a greenhouse during the spring if required. Prick out the seedlings into individual pots when they are large enough to handle and plant out in late spring.

Cultivars

'': No entries have been made for this species as yet.

Suppliers

For more details of plant suppliers please see our Suppliers Page which lists many more places to look.

PFAF Web Pages

This plant is mentioned in the following web pages

PFAF Species Database Bibliography

Web References

Latin and Worldwide Common Names From Multilingual Multiscript Plant Name Database by M. H. Porcher et. al. 1995 - 2000 Landcare Systems Research Laboratory, Department of Crop Production,Institute of Land and Food Resources, The University of Melbourne, Australia.
Details of Medicinal Uses, Habitats, etc. in M. Grieve A Modern Herbal (1931) [4]
[H] Details of Scandanavian and European Common names in Henriette's names database
[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.
[B] Data (Latin & Common names, other references) from the BONAP's Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands.
[G] Data (Common Names, Uses, Distribution) from the USDA/ARS NPGS's GRIN taxonomic database.
[C] Taxon data. from the CalFlora database.
Images from the CalPhoto database.
[PHARM] Phytochemical Data (common names, uses, countries) from Dr Duke's Phytochemical Database.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for Solanum nigra (a possible synonym).

[E] Ethnobotany Data (common names, uses, countries) from the Ethnobotany Database.

References for Solanum ptychanthum (a possible synonym).

[B] Data (Latin & Common names, other references) from the BONAP's Synonymized Checklist of the Vascular Flora of the United States, Puerto Rico, and the Virgin Islands.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.

References for solanum nigrum (a possible synonym).

[HP] PhotoFrom Henriette's plant pictures
[HP] PhotoFrom Henriette's plant pictures

References for the family Solanaceae.

[CHINA] Data Very detailed botanical/identification info. from the Flora of China.

See the PFAF Links Pages for other sources.

Also try Photos and info from the The Plants Database which has 14,000 images.

References

[K] Ken Fern
Notes from observations, tasting etc at Plants For A Future and on field trips.

[1] F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press 1951
Comprehensive listing of species and how to grow them. Somewhat outdated, it has been replaces in 1992 by a new dictionary (see [200]).

[2] Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications 1972 ISBN 0-486-20459-6
Lots of entries, quite a lot of information in most entries and references.

[4] Grieve. A Modern Herbal. Penguin 1984 ISBN 0-14-046-440-9
Not so modern (1930's?) but lots of information, mainly temperate plants.

[7] Chiej. R. Encyclopaedia of Medicinal Plants. MacDonald 1984 ISBN 0-356-10541-5
Covers plants growing in Europe. Also gives other interesting information on the plants. Good photographs.

[10] Altmann. H. Poisonous Plants and Animals. Chatto and Windus 1980 ISBN 0-7011-2526-8
A small book, reasonable but not very detailed.

[13] Triska. Dr. Hamlyn Encyclopaedia of Plants. Hamlyn 1975 ISBN 0-600-33545-3
Very interesting reading, giving some details of plant uses and quite a lot of folk-lore.

[17] Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press 1962
A very comprehensive flora, the standard reference book but it has no pictures.

[18] Philbrick H. and Gregg R. B. Companion Plants. Watkins 1979
Details of beneficial and antagonistic relationships between neighbouring plants.

[21] Lust. J. The Herb Book. Bantam books 1983 ISBN 0-553-23827-2
Lots of information tightly crammed into a fairly small book.

[27] Vilmorin. A. The Vegetable Garden. Ten Speed Press ISBN 0-89815-041-8
A reprint of a nineteenth century classic, giving details of vegetable varieties. Not really that informative though.

[65] Frohne. D. and Pf�nder. J. A Colour Atlas of Poisonous Plants. Wolfe 1984 ISBN 0723408394
Brilliant. Goes into technical details but in a very readable way. The best work on the subject that I've come across so far.

[76] Cooper. M. and Johnson. A. Poisonous Plants in Britain and their Effects on Animals and Man. HMSO 1984 ISBN 0112425291
Concentrates mainly on the effects of poisonous plants to livestock.

[85] Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press 1967 ISBN 0-8623-0343-9
A superb book. Very readable, it gives the results of the authors experiments with native edible plants.

[89] Polunin. O. and Huxley. A. Flowers of the Mediterranean. Hogarth Press 1987 ISBN 0-7012-0784-1
A very readable pocket flora that is well illustrated. Gives some information on plant uses.

[145] Singh. Dr. G. and Kachroo. Prof. Dr. P. Forest Flora of Srinagar. Bishen Singh Mahendra Pal Singh 1976
A good flora of the western Himalayas but poorly illustrated. Some information on plant uses.

[147] ? A Barefoot Doctors Manual. Running Press ISBN 0-914294-92-X
A very readable herbal from China, combining some modern methods with traditional chinese methods.

[148] Niebuhr. A. D. Herbs of Greece. Herb Society of America. 1970
A pleasant little book about Greek herbs.

[173] Crowe. A. Native Edible Plants of New Zealand. Hodder and Stoughton 1990 ISBN 0-340-508302
A very well written and illustrated book based on the authors own experiments with living on a native diet.

[179] Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao. Taipei. Southern Materials Centre 1977
A translation of an ancient Chinese book on edible wild foods. Fascinating.

[183] Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications 1990 ISBN 0-9628087-0-9
Excellent. Contains a very wide range of conventional and unconventional food plants (including tropical) and where they can be obtained (mainly N. American nurseries but also research institutes and a lot of other nurseries from around the world.

[192] Emboden. W. Narcotic Plants Studio Vista 1979 ISBN 0-289-70864-8
A lot of details about the history, chemistry and use of narcotic plants, including hallucinogens, stimulants, inebriants and hypnotics.

[200] Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press 1992 ISBN 0-333-47494-5
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.

[206] Larkcom J. Oriental Vegetables John Murray 1991 ISBN 0-7195-4781-4
Well written and very informative.

[218] Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. 1985 ISBN 0-917256-20-4
Details of over 1,200 medicinal plants of China and brief details of their uses. Often includes an analysis, or at least a list of constituents. Heavy going if you are not into the subject.

[248] Anderson. A. New Scientist IPC Magazines Ltd, London 1997 ISBN 0262-4079
A short item on a couple of soil reclamation plants, Atropa belladonna and Solanum nigrum

[257] Moerman. D. Native American Ethnobotany Timber Press. Oregon. 1998 ISBN 0-88192-453-9
Very comprehensive but terse guide to the native uses of plants. Excellent bibliography, fully referenced to each plant, giving a pathway to further information. Not for the casual reader.

Readers Comments

Weeds as a future source for human consumption

Martha D�az B (martha@ecologia.edu.mx) Thu Jun 28 17:02:26 2001

We reciently recieved this article on the use of various weeds in south america. We though that you might enjoy it.

Abstract

Weeds may constitute an additional food source for humans. Up to 66% of weed species are edible and abound in urban and agricultural environments. A total of 43 species were sampled in tropical areas in Coatepec Mexico (e.g. roadsides, urban vacant lots, streets, sugar cane and coffee plantations). A similar survey performed in a temperate area in Bariloche Argentina with 32 species sampled. At a greater geographic scale, a comparison between Mexican and Argentine weeds shows that, proportionately, the food parts vary a little between regions. In general, the uses go from leaves, seeds, roots, fruits, and flowers.

Link: Weeds as a future source for human consumption

Cross references: Plants: Acalypha wilkesiana, Amaranthus dubius, Amaranthus hybridus, Amaranthus spinosus, Anagallis arvensis, Alstroemeria aurea, Berberis buxifolia, Brassica rapa, Bidens odorata, Cichorius intybus, Cirsium vulgare, Claytonia perfoliata, Cytisus scoparius, Chenopodium album, Chrysanthemum leucanthemum, Canna indica, Chenopodium ambrosioides, Commelina diffusa, Commelina erecta, Drymaria cordata, Drymaria gracilis, Galinsoga quadriradiata, Heliconia caribaea, Hydrocotyle bonariensis, Hydrocotyle mexicana, Ipomoea purpurea, Ipomoea tilliacea, Ipomoea triloba, Hypochoeris radicata, Lactuca serriola, Malus sylvestris, Medicago lupulina, Melilotus albus, Margaranthus sulphureus, Oenothera odorata, Osmorhiza chilensis, Oxalis corniculata, Oxalis latifolia, Phaseolus vulgaris, Piper auritum, Plantago hirtella, Plantago lanceolata, Portulaca oleracea, Papaver rhoeas, Rumex acetosella, Rumex longifolius, Rumex obtusifolius, Sida acuta, Sida glabra, Sida rhombifolia, Sida spinosa, Sonchus oleraceus, Spilanthes americana, Sanguisorba minor, Silybum marianum, Sonchus asper, Sonchus oleraceus, Stellaria media, Taraxacum officinale, Tragopogon dubius, Tradescantia fluminensis, Tagetes micrantha, Trifolium repens, Tripogandra serrulata, Xanthosoma robustum, Youngia japonica. Genera: Mentha.

Weeds as a future source for human consumption

Klaus (allmendeperma@web.de) Thu Aug 16 16:12:55 2001

I really wonder what this has to do with montia perfoliata. The edible uses of weeds might be interesting, but not as a comment to this plant.

Plant Passporting

Rich (michael@thewitchshaven.com) Wed Sep 26 16:58:15 2001

This information has been taken from DEFRA Guide to Plant Passporting. Which places restrictions on plants which can be traded in the UK and the EU mainly because they are carriers for pests and diseases.

Beta vulgaris (Beet), Chaenomeles (Ornamental quince, Japonica), Citrus (Orange, lemon, lime, grapefruit, etc.), Cotoneaster (Cotoneaster), Crataegus (Hawthorn), Cydonia (Quince), Eriobotrya (Includes loquat), Fortunella and hybrids (Kumquat), Humulus lupulus (Hop (including ornamentals)), Malus (Apple (including ornamentals)), Mespilus (Medlar), Poncirus and hybrids (Ornamental citrus), Prunus (other than Prunus laurocerasus and Prunus lusitanica) (Includes almond, apricot, cherry, damson, greengage, nectarine, peach, plum, sloe and ornamental/flowering varieties), Pyracantha (Firethorn), Pyrus (Pear (including ornamentals)), Solanum (stolon or tuber forming types) (Potato), Sorbus (other than Sorbus intermedia) (Includes rowan and whitebeam), Stranvaesia (Stranvaesia), Vitis (Grape, includes grape vine and ornamental grape).

Many other plants require pasporting for commercial growers, these include Abies, Allium ascalonicum, Allium cepa, Allium porrum, Allium schoenoprasum, Apium graveolens, Plants of the family Araceae, Argyranthemum, Aster, Brassica, Castanea, Capsicum annuum, Cucumis, Dendranthema, Dianthus and hybrids, Euphorbia, Exacum, Fragaria, Gerbera, Gypsophila, Helianthus annuus, Impatiens (all varieties of New Guinea hybrids), Lactuca, Larix, Leucanthemum, Lupinus, Lycopersicon lycopersicum, Plants of the family Marantaceae, Medicago sativa, Plants of the family Musaceae, Nicotiana, Pelargonium, Persea, Phaseolus, Picea, Pinus, Platanus, Populus, Prunus laurocerasus and Prunus lusitanica, Pseudotsuga, Quercus, Rubus, Plants of the family Solanaceae (other than plants of stolon or tuber forming species of Solanum and their hybrids), Solanum melongena, Spinacia, Plants of the family Strelitziaceae, Tanacetum, Tsuga, Verbena.

Cross references: Plants: Beta vulgaris, Humulus lupulus. Genera: Chaenomeles, Citrus, Cotoneaster, Crataegus, Cydonia, Eriobotrya, Fortunella, Malus, Mespilus, Poncirus, Prunus, Pyracantha, Pyrus, Solanum, Sorbus, Stranvaesia, Vitis.

Main Search Page

Bibliography

Plant information taken from the Plants For A Future - Species Database. Copyright (c) 1997-2003.
WEB search engine by Rich Morris - Home Page- Contact Info
Blagdon Cross, Ashwater, Beaworthy, Devon, EX21 5DF, UK.
Website: www.pfaf.org Phone: 0845 458 4719/_44(0) 1208 872963

This page (UK) http://www.comp.leeds.ac.uk/cgi-bin/pfaf/arr_html?Solanum+nigrum
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We make no claims of magical effects or supernatural powers for any item in this catalog. In spite of legendary attributes or occult and craft tradition, such items are offered as curios only and beliefs concerning their magical effectiveness are related only for historical interest.