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Useful Temperate Plants

Wolffia arrhiza

(L.)Horkel. ex Wimm.

Araceae


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: Least Duckweed

No Image.

General Information

Wolffia arrhiza is a Evergreen Perennial up to 0.01 metres tall.
It has edible uses.

Known Hazards

None known

Botanical References

17
Title
Flora of the British Isles.
Publication
 
Author
Clapham, Tutin and Warburg.
Publisher
Cambridge University Press
Year
1962
ISBN
-
Description
A very comprehensive flora, the standard reference book but it has no pictures.
,
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.
,
204
Title
Flora of Canada
Publication
 
Author
Livingstone. B.
Publisher
National Museums of Canada
Year
1978
ISBN
0-660-00025-3
Description
In 4 volumes, it does not deal with plant uses but gives descriptions and habitats.

Range

Europe, including Britain, to Asia.

Habitat

Floating on quiet waters[
204
Title
Flora of Canada
Publication
 
Author
Livingstone. B.
Publisher
National Museums of Canada
Year
1978
ISBN
0-660-00025-3
Description
In 4 volumes, it does not deal with plant uses but gives descriptions and habitats.
]. A rare native of southern Britain, growing in still waters[
17
Title
Flora of the British Isles.
Publication
 
Author
Clapham, Tutin and Warburg.
Publisher
Cambridge University Press
Year
1962
ISBN
-
Description
A very comprehensive flora, the standard reference book but it has no pictures.
].

Properties

Edibility Rating *  *  *  *
HabitEvergreen Perennial
Height0.01 m
Cultivation StatusWild

Cultivation Details

A pond plant, floating on the surface of the water, it requires a sunny position in still water that is rich in nitrates and lime[
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.
].
At the limit of its climatic range in Britain and probably best grown in a cold water aquarium[
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 over-winters in temperate areas by means of resting buds which sink to the bottom of the pond in the late autumn and rise again in the spring[
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.
].
One of the smallest flowering plants in the world, it is cultivated as a vegetable in Burma, Laos and Thailand[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. It has been recommended for commercial cultivation, especially in tropical areas, because of its rapid multiplication and high nutritional value[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. Plant densities of over two million plants per square metre have been found[
274
Title
Illustrated Flora of North Central Texas
Publication
 
Author
Diggs, Jnr. G.M.; Lipscomb. B. L. & O'Kennon. R. J
Website
http://artemis.austincollege.edu/acad/bio/gdiggs/NCTXpdf.htm
Publisher
Botanical Research Institute, Texas.
Year
1999
ISBN
1-889878-01-4
Description
An excellent flora, which is also available on-line.
].

Edible Uses

Leaves - cooked. An excellent flavour, they taste somewhat like a sweet cabbage[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
]. The leaves are very nutritious, containing about 20% protein, 44% carbohydrate. 5% fat and are rich in vitamins A, B2, B6, C and nicotinic acid[
183
Title
Cornucopia - A Source Book of Edible Plants.
Publication
 
Author
Facciola. S.
Publisher
Kampong Publications
Year
1990
ISBN
0-9628087-0-9
Description
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.
].

Medicinal

None known

Other Uses

None known

Propagation

Seed - we have no information on this species but, since it can spread rapidly by division, it really needs no extra help once it is in a pond.

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