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Useful Temperate Plants

Dioscorea villosa

L.

Dioscoreaceae


The Temperate Database is in the process of being updated, with new records being added and old ones being checked and brought up to date where necessary. This record has not yet been checked and updated.

+ Synonyms

Common Name: Wild Yam

No Image.

General Information

Dioscorea villosa is a Perennial Climber up to 3.00 metres tall.
It has edible and medicinal uses.

Known Hazards

Edible species of Dioscorea have opposite leaves whilst poisonous species have alternate leaves[
174
Title
Atlas of Medicinal Plants.
Publication
 
Author
Kariyone. T.
Publisher
Nihon Rinshosha; Osaka
Year
1973
ISBN
 
Description
A good Japanese herbal.
]. Use of the fresh plant can cause vomiting and other side effects[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
].

Botanical References

43
Title
Gray's Manual of Botany.Eighth Edition
Publication
 
Author
Fernald. M. L.
Publisher
American Book Co.; New York
Year
1950
ISBN
0442222505
Description
A bit dated but a good and concise flora of the eastern part of N. America.
,
235
Title
An Illustrated Flora of the Northern United States and Canada
Publication
 
Author
Britton. N. L. Brown. A.
Publisher
Dover Publications. New York.
Year
1970
ISBN
0-486-22642-5
Description
Reprint of a 1913 Flora, but still a very useful book.

Range

Eastern N. America - New England to Minnesota and Ontario, south to Virginia and Texas.

Habitat

Borders of bogs, swamps, marshes, river and lake margins, creek bottoms, sandy or rocky soils, moist or dry woods, hammocks, thickets, limestone or talus slopes, roadsides, sea level to 1500 m[
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].

Properties

Edibility Rating *  *
Medicinal Rating *  *  *  *
HabitPerennial Climber
Height3.00 m
Self-fertileNo
Cultivation StatusWild

Cultivation Details

An easily grown plant, succeeding in a fertile well-drained soil in a sunny position or light shade[
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.
]. Prefers a rich light 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]).
].
Plants are hardy to at least -15°c[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
].
Plants produce tubercles (small tubers that are formed in the leaf axils of the stems), and can be propagated by this means[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
A climbing plant that supports itself by twining around the branches of other plants[
219
Title
Gardening on Walls
Publication
 
Author
Grey-Wilson. C. & Matthews. V.
Publisher
Collins
Year
1983
ISBN
0-00-219220-0
Description
A nice little book about plants for growing against walls and a small section on plants that can grow in walls.
].
This is a highly polymorphic species, some botanists dividing it up into several species[
235
Title
An Illustrated Flora of the Northern United States and Canada
Publication
 
Author
Britton. N. L. Brown. A.
Publisher
Dover Publications. New York.
Year
1970
ISBN
0-486-22642-5
Description
Reprint of a 1913 Flora, but still a very useful book.
,
270
Title
Flora of N. America
Publication
 
Author
 
Website
http://flora.huh.harvard.edu/fna/
Publisher
 
Year
0
ISBN
 
Description
An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses.
].
A dioecious species - both male and female forms must be grown if fruit and seed are required.

Edible Uses

Tuber - cooked[
177
Title
Plants for Human Consumption.
Publication
 
Author
Kunkel. G.
Publisher
Koeltz Scientific Books
Year
1984
ISBN
3874292169
Description
An excellent book for the dedicated. A comprehensive listing of Latin names with a brief list of edible parts.
]. Some caution should be exercised with this plant. See 'Medicinal Uses' for more information.

Medicinal

Wild yam roots, and the roots of many other members of the genus, contains diosgenin[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
]. This is widely used in modern medicine in order to manufacture progesterone and other steroid drugs. These are used as contraceptives and in the treatment of various disorders of the genitary organs as well as in a host of other diseases such as asthma and arthritis[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
,
254
Title
The Encyclopedia of Medicinal Plants
Publication
 
Author
Chevallier. A.
Publisher
Dorling Kindersley. London
Year
1996
ISBN
9-780751-303148
Description
An excellent guide to over 500 of the more well known medicinal herbs from around the world.
].
The roots are anti-inflammatory, antispasmodic, cholagogue, diaphoretic and vasodilator[
165
Title
The Dictionary of Modern Herbalism.
Publication
 
Author
Mills. S. Y.
Publisher
 
Year
 
ISBN
 
Description
An excellent small herbal.
,
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. They are also a visceral relaxant[
165
Title
The Dictionary of Modern Herbalism.
Publication
 
Author
Mills. S. Y.
Publisher
 
Year
 
ISBN
 
Description
An excellent small herbal.
]. This plant affords one of the best and fastest cures for bilious colic, it is especially helpful in treating the nausea of pregnant women[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
] and has been used to ease the pain of childbirth[
257
Title
Native American Ethnobotany
Publication
 
Author
Moerman. D.
Publisher
Timber Press. Oregon.
Year
1998
ISBN
0-88192-453-9
Description
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.
]. It is also taken internally in the treatment of arthritis, irritable bowel syndrome, gastritis, gall bladder complaints, painful menstruation etc[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The root is harvested in the autumn and dried for later use[
238
Title
Encyclopaedia of Herbs and their Uses.
Publication
 
Author
Bown. D.
Publisher
Dorling Kindersley, London.
Year
1995
ISBN
0-7513-020-31
Description
A very well presented and informative book on herbs from around the globe. Plenty in it for both the casual reader and the serious student. Just one main quibble is the silly way of having two separate entries for each plant.
]. The root should not be stored for longer than 1 year, since it is likely to lose its medicinal virtues[
4
Title
A Modern Herbal.
Publication
 
Author
Grieve.
Publisher
Penguin
Year
1984
ISBN
0-14-046-440-9
Description
Not so modern (1930's?) but lots of information, mainly temperate plants.
]. Caution is advised in the use of the this plant, when taken fresh it can cause vomiting and other side effects[
222
Title
A Field Guide to Medicinal Plants. Eastern and Central N. America.
Publication
 
Author
Foster. S. & Duke. J. A.
Publisher
Houghton Mifflin Co.
Year
1990
ISBN
0395467225
Description
A concise book dealing with almost 500 species. A line drawing of each plant is included plus colour photographs of about 100 species. Very good as a field guide, it only gives brief details about the plants medicinal properties.
].
The root, harvested in September, is used to make a homeopathic remedy[
232
Title
The Complete Homeopathy Handbook.
Publication
 
Author
Castro. M.
Publisher
Macmillan. London.
Year
1990
ISBN
0-333-55581-3
Description
A concise beginner's guide to the subject. Very readable.
]. Its main use is in the treatment of infant colic[
232
Title
The Complete Homeopathy Handbook.
Publication
 
Author
Castro. M.
Publisher
Macmillan. London.
Year
1990
ISBN
0-333-55581-3
Description
A concise beginner's guide to the subject. Very readable.
].

Other Uses

None known

Propagation

Seed - sow early spring to mid spring in a sunny position in a warm greenhouse and only just cover. It germinates in 1 - 3 weeks at 20°c[
175
Title
Focus on Plants. Volume 5. (formerly 'Growing from seed')
Publication
 
Author
Bird. R. (Editor)
Publisher
Thompson and Morgan.
Year
1991
ISBN
-
Description
Very readable magazine with lots of information on propagation. A good article on Corydalis spp.
]. Prick out the seedlings as soon as they are large enough to handle and grow on in a greenhouse for their first year. Plant out in late spring as the plant comes into new growth.
Basal stem cuttings in the summer[
37
Title
The Gardener's Assistant.
Publication
 
Author
Thompson. B.
Publisher
Blackie and Son.
Year
1878
ISBN
-
Description
Excellent general but extensive guide to gardening practices in the 19th century. A very good section on fruits and vegetables with many little known species.
].
Division in the dormant season, never when in growth[
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]).
]. The plant will often produce a number of shoots, the top 5 - 10 cm of the root below each shoot can be potted up to form a new plant whilst the lower part of the root can possibly be eaten[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Tubercles (baby tubers) are formed in the leaf axils. These are harvested in late summer and early autumn when about the size of a pea and coming away easily from the plant. They should be potted up immediately in individual pots in a greenhouse or cold frame. Plant out in early summer when in active growth[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2019-07-20. <temperate.theferns.info/plant/Dioscorea+villosa>

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