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Rumex longifolius

Common name:		Family:	Polygonaceae
Author:	DC.	Botanical references:	17
Synonyms:	Rumex domesticus (Hartm.), Rumex aquaticus (Auct. non L.)
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].
Range:	Europe, including Britain, from Scandanavia south and east to the Pyrenees, Caucasus and C. Asia.
Habitat:	By rivers, in ditches and in damp grassy places[17].
Edibility Rating (1-5):	1	Medicinal Rating (1-5):	1

Other Common Names:	From various places around the Web, may not be correct. See below.
	Dock [E], Door-yard Dock [B], Dooryard Dock [P], Longleaf Dock [L], Noordse Zuring [D], Paardenzuring [D], Paratella [E], Red Dock [H], Su Labadasi [E], Water Dock [H], Western Dock [P,B],
Epithets:	From a Dictionary of Botanical Epithets
	longifolius = long leaved
Systematics:	From a USDA Plants Database
	Order: Polygonales. Buckwheat family
Other Range Info:	From the Ethnobotany Database
	Europe Turkey Us

Physical Characteristics

Perennial growing to 1.2m. . It is in flower from June to July. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Wind. We rate it 1/5 for edibility and 1/5 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 can grow in semi-shade (light woodland) or no shade. It requires moist soil.

Habitats and Possible Locations

Meadow, Bog Garden.

Edible Uses

Leaves Seed.

Leaves - cooked[105]. Harvested as they appear through the ground, they are eaten as a vegetable for their antiscorbutic action[2].
Seed - ground into a powder and used in gruel or added to cereal flours when making bread etc[102, 105].

Medicinal Uses

Disclaimer

Alterative Astringent Cholagogue Deobstruent Stomachic Tonic.

The whole plant, but especially the root, is alterative, astringent, cholagogue, deobstruent, stomachic and tonic[4, 21].

Other Uses

Dye.

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].

Cultivation details

Succeeds in most soils but prefers a deep fertile moderately heavy soil that is humus-rich, moisture-retentive but well-drained and a position in full-sun or part shade[200].

Propagation

Seed - sow spring in situ.
Division in spring.

Suppliers

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

Web References

Details of Medicinal Uses, Habitats, etc. in M. Grieve A Modern Herbal (1931) [4]
[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.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for Rumex aquaticus (a possible synonym).

[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.
[P] Data. (uses, distribution, wetland) from the USDA'a Plants database.
[HP] Links, Photos, Suppliers from Hortiplex Plant Database

References for rumex longifolius (a possible synonym).

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

References for the family Polygonaceae.

[CHINA] Draft 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

[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.

[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.

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

[102] Kavasch. B. Native Harvests. Vintage Books 1979 ISBN 0-394-72811-4
Another guide to the wild foods of America.

[105] Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing 1976
The most comprehensive guide to 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.

[168] Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. 1974 ISBN 0-02-544950-8
A very good and readable book on dyeing.

[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.

[238] Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. 1995 ISBN 0-7513-020-31
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.

Readers Comments

Weeds as a future source for human consumption

Martha Díaz 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 obtusifolius, Sida acuta, Sida glabra, Sida rhombifolia, Sida spinosa, Solanum nigrum, 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.

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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
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