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Useful Temperate Plants

Oxalis oregana

Nutt.

Oxalidaceae


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: Redwood Sorrel

No Image.

General Information

Oxalis oregana is a Evergreen Perennial up to 0.20 metres tall.
It has edible, medicinal and miscellaneous uses.

Known Hazards

The leaves contain oxalic acid, which gives them their sharp flavour. Perfectly all right in small quantities, the leaves should not be eaten in large amounts since oxalic acid can bind up the body's supply of calcium leading to nutritional deficiency. The quantity of oxalic acid will be reduced if the leaves are 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.
,
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.

Range

Western N. America - Washington to California.

Habitat

Redwood forests[
187
Title
Perennials. Volumes 1 and 2.
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Pan Books
Year
1991
ISBN
0-330-30936-9
Description
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
]. Moist woods[
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.
].

Properties

Edibility Rating *  *  *
Medicinal Rating *
HabitEvergreen Perennial
Height0.20 m
PollinatorsInsects
Cultivation StatusWild

Cultivation Details

Easily grown in a moisture-retentive humus-rich soil in shade or dappled sunlight[
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.
]. Succeeds in dense shade[
187
Title
Perennials. Volumes 1 and 2.
Publication
 
Author
Phillips. R. & Rix. M.
Publisher
Pan Books
Year
1991
ISBN
0-330-30936-9
Description
Photographs of over 3,000 species and cultivars of ornamental plants together with brief cultivation notes, details of habitat etc.
].
Grows well in a wild or woodland garden[
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 can be very invasive when in suitable conditions[
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.
].
Plant is growing very vigorously in quite dense shade under an Elaeagnus shrub in Cornwall - it stays green all year round and is fairly productive[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Edible Uses

Leaves - raw or cooked[
118
Title
Ethnobotany of Western Washington.
Publication
 
Author
Gunther. E.
Publisher
University of Washington Press
Year
1981
ISBN
0-295-95258-X
Description
A small book, it is a good guide to useful plants in Western N. America.
,
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.
,
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 acid, flavour, it is especially adored by children and makes an excellent addition to mixed salads[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. The leaves can be harvested all year round[
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 mass of the leaves and stems can be allowed to ferment slightly when they make a tasty dessert[
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.
]. A sort of rhubarb pie can be made from the leaf stalks[
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 leaf stalks are very thin - you would need an awful lot for a pie[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
]. Use in moderation, see notes above on toxicity.
Flowers - raw[
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 pleasant acid flavour[
K
Title
Plants for a Future
Author
Ken Fern
Description
Notes from observations, tasting etc at Plants For A Future and on field trips.
].

Medicinal

A decoction of the whole plant has been used as a wash in the treatment of rheumatism[
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 fresh juice of the plant has been used as eye drops to ease sore eyes[
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 wilted leaves has been used as a dressing on boils, sores and on swollen areas of the skin[
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

A good ground cover plant for a woodland garden[
197
Title
Ground Cover Plants.
Publication
 
Author
Royal Horticultural Society.
Publisher
Cassells.
Year
1989
ISBN
0-304-31089-1
Description
A handy little booklet from the R.H.S.
,
208
Title
Plants for Ground Cover
Publication
 
Author
Thomas. G. S.
Publisher
J. M. Dent & Sons
Year
1990
ISBN
0-460-12609-1
Description
An excellent detailled book on the subject, very comprehensive.
], though it can be invasive[
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.
]. It needs weeding for the first year or so[
197
Title
Ground Cover Plants.
Publication
 
Author
Royal Horticultural Society.
Publisher
Cassells.
Year
1989
ISBN
0-304-31089-1
Description
A handy little booklet from the R.H.S.
].

Propagation

Seed - best sown as soon as ripe in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in late spring or early summer.
Division in spring. Larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.
Cite as: Temperate Plants Database, Ken Fern. temperate.theferns.info. 2018-10-23. <temperate.theferns.info/plant/Oxalis+oregana>

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