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Useful Temperate Plants

Rumex occidentalis

S.Watson

Polygonaceae

+ Synonyms

Rumex aquaticus fenestratus (Greene) Hultén

Rumex aquaticus occidentalis (S.Watson) Hultén

Rumex aquaticus tomentellus (Rech.f.) Á.Löve

Rumex bakeri Greene

Rumex confinis Greene

Rumex fenestratus Greene

Rumex gracilipes Greene

Rumex procerus Greene

Rumex tomentellus Rech.f.

Common Name: Western Dock

No Image.

General Information

Rumex occidentalis is a perennial plant that can grow up to 180cm tall.
The plant is harvested from the wild for local use as a food, medicine and source of materials.

Known Hazards

Plants can contain quite high levels of oxalic acid, which is what gives the leaves of many members of this genus an acid-lemon flavour. Perfectly alright in small quantities, the leaves should not be eaten in large amounts since the oxalic acid can lock-up other nutrients in the food, especially calcium, thus causing mineral deficiencies. The oxalic acid content will be reduced if the plant is cooked. People with a tendency to rheumatism, arthritis, gout, kidney stones or hyperacidity should take especial caution if including this plant in their diet since it can aggravate their condition[
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.
].

Botanical References

60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
,
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.

Range

Subarctic N. America from Alaska to Nunavut and southwards to California, New Mexico, Iowa, Ontasio and Maine

Habitat

Moist and swampy areas, summer-drying meadows, seacoast to foothills, valley and open montane flats[
60
Title
Vascular Plants of the Pacific Northwest.
Publication
 
Author
Hitchcock. C. L.
Publisher
University of Washington Press
Year
1955
ISBN
-
Description
A standard flora for Western N. America with lots of information on habitat etc. Five large volumes, it is not for the casual reader.
]. Wet meadows, bogs, marshes, river banks, shallow water, other wet habitats; at elevations up to 2,500 metres[
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 *  *
Other Uses Rating *  *
HabitPerennial
Height1.80 m
PollinatorsWind
Cultivation StatusWild

Cultivation Details


Species in this genus generally succeed in a variety of soils, but they prefer deep fertile moderately heavy soils that are humus-rich, moisture-retentive and also well-drained, with a position in full-sun or part 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.
]. Plants were seen growing well in a sunny well-drained bed at Kew in 1989[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].
Being wind -pollinated, Rumex species usually hybridize readily, especially with other members of the genus they are more closely related to[
74
Title
Flora of the USSR.
Publication
 
Author
Komarov. V. L.
Website
http://www.biodiversitylibrary.org
Publisher
Israel Program for Scientific Translation
Year
1968
ISBN
-
Description
An immense (25 or more large volumes) and not yet completed translation of the Russian flora. Full of information on plant uses and habitats but heavy going for casual readers. It can be downloaded from the Internet.
].

Edible Uses

Young leaves - cooked[
61
Title
A Dictionary of Plants Used by Man.
Publication
 
Author
Usher. G.
Publisher
Constable
Year
1974
ISBN
0094579202
Description
Forget the sexist title, this is one of the best books on the subject. Lists a very extensive range of useful plants from around the world with very brief details of the uses. Not for the casual reader.
,
105
Title
Tanaka's Cyclopedia of Edible Plants of the World.
Publication
 
Author
Tanaka. T. & Nakao S.
Publisher
Keigaku Publishing; Tokyo
Year
1976
ISBN
-
Description
The most comprehensive list of edible plants I've come across. Only the briefest entry for each species, though, and some of the entries are more than a little dubious. Not for the casual reader.
,
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.
,
172
Title
Discovering Wild Plants - Alaska, W. Canada and the Northwest.
Publication
 
Author
Schofield. J. J.
Publisher
Alaska Northwest Books; Alaska
Year
2003
ISBN
0882403699
Description
A nice guide to some useful plants in that area.
]. Used like spinach[
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.
]. A bitter taste, the native North American Indians would add oil to improve the flavour[
256
Title
Food Plants of Coastal First Peoples
Publication
 
Author
Turner. N. J.
Publisher
UBC Press. Vancouver.
Year
1995
ISBN
0-7748-0533-1
Description
Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
].

Young stems - cooked[
256
Title
Food Plants of Coastal First Peoples
Publication
 
Author
Turner. N. J.
Publisher
UBC Press. Vancouver.
Year
1995
ISBN
0-7748-0533-1
Description
Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
]. Used like rhubarb[
256
Title
Food Plants of Coastal First Peoples
Publication
 
Author
Turner. N. J.
Publisher
UBC Press. Vancouver.
Year
1995
ISBN
0-7748-0533-1
Description
Excellent little handbook about the native food plants of Western Canada. Good descriptions of the plants and their uses with colour photos of most plants.
].

Seed - raw or cooked[
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.
,
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.
,
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.
]. The seed can also be ground into a powder and used to make a gruel or added to cereal flours when making bread etc. It is rather small and fiddly to harvest.

Medicinal

The leaves have been used in herbal sweat baths to treat pains similar to rheumatism all over the body[
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.
].
A poultice of the leaves and mashed, roasted roots has been applied to sores, boils and wounds[
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.
].

A poultice of the root paste has been applied to cuts and boils[
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.
].

Other Uses

An extract of the whole plant is used as an ingredient in commercial cosmetic preparations as a skin conditioner and soothing agent[
1243
Title
CosIng
Publication
 
Author
 
Website
http://ec.europa.eu/growth/tools-databases/cosing/
Publisher
 
Year
0
ISBN
 
Description
CosIng is the European Commission database for information on cosmetic substances and ingredients.
].

Although no specific mention has been made for this species, dark green to brown and dark grey dyes can be obtained from the roots of many species in this genus, They do not need a mordant[
168
Title
Nature's Colors - Dyes from Plants.
Publication
 
Author
Grae. I.
Publisher
MacMillan Publishing Co. New York.
Year
1974
ISBN
0-02-544950-8
Description
A very good and readable book on dyeing.
].

Propagation

Seed - sow spring in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.
Division in spring.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2024-12-04. <temperate.theferns.info/plant/Rumex+occidentalis>

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