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Mahonia nervosa
  • Oregon Grape

a perennial woody evergreen member of the Mahonia genus in the family Berberidaceae.

Niche
  • Soil surface
    Soil surface
    There are no details available for this niche.
Functions
  • Ground cover
    Ground cover
    There are no details available for this function.
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • permanent shade
    Permanent shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Unknown
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Heavy clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 6
    Zone 6
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Mahonia nervosa has 0 edible uses listed
Mahonia nervosa has 0 material uses listed
Mahonia nervosa has 0 medicinal uses listed

Uses

Edible uses

Notes

Fruit - raw or cooked[1][2][3]. An acid flavour but it is rather nice raw, especially when added to muesli or porridge[K]. Unfortunately, there is relatively little flesh and a lot of seeds[K]. Too acid for most tastes but they are very good in jams, jellies, pies etc[4]. They can also be used to enhance the flavour of bland fruits or made into a refreshing lemon-flavoured drink[4]. The fruit is about 8mm in diameter[5]. Young tender leaves - cooked. Simmered in a small amount of water and eaten as a snack[4].

Fruit

Unknown use

Leaves

Unknown use

Material uses

A yellow dye is obtained from the inner bark of the stem and roots[6][3][7].

Dark green, violet and dark blue-purple dyes are obtained from the fruit[8]. A green dye is obtained from the leaves[8].

Plants can be grown as a ground cover, spaced about 30cm apart each way[9]. They are very slow to spread[9] and so will need weeding for their first few years after planting[K].

Unknown part

Dye

Medicinal uses(Warning!)

The root is alterative and tonic[10]. It improves the digestion and absorption and is recommended in the treatment of psoriasis, syphilis and impure blood conditions[10][7]. A decoction of the peeled and chopped root bark has been used as a wash in treating arthritis and as an eyewash for red itchy eyes[7].

The fruit is an excellent safe and gentle laxative[7].

Berberine, universally present in rhizomes of Mahonia species, has marked antibacterial effects[11] and is used as a bitter tonic[12]. Since it is not appreciably absorbed by the body, it is used orally in the treatment of various enteric infections, especially bacterial dysentery[11]. It should not be used with Glycyrrhiza species (Liquorice) because this nullifies the effects of the berberine[11]. Berberine has also shown antitumour activity[11]. The root and root bark are best harvested in the autumn[12].

Unknown part

Antiarthritic
Antibacterial
Antitumor
Blood tonic
Laxative
Tonic

Ecology

Ecosystem niche/layer

Soil surface

Ecological Functions

Ground cover

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - best sown as soon as it is ripe in a cold frame[13]. It usually germinates in the spring[K]. 'Green' seed (harvested when the embryo has fully developed but before the seed case has dried) should be sown as soon as it is harvested and germinates within 6 weeks[K]. Stored seed should be sown as soon as possible in late winter or spring. 3 weeks cold stratification will improve its germination, which should take place in 3 - 6 months at 10°c. Prick out the seedlings when they are large enough to handle and grow them on in a cold frame for at least their first winter. Plant them out in late spring or early summer.

Division of suckers in spring[13]. Whilst they can be placed direct into their permanent positions, better results are achieved if they are potted up and placed in a frame until established[14].

Leaf cuttings in the autumn.

Practical Plants is currently lacking information on propagation instructions of Mahonia nervosa. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

An easily grown plant, it thrives in any good garden soil[14][5] but also succeeds in poor dry ones. Another report says that it is best on a lime-free soil[15]. Grows well in heavy clay soils. Prefers a sunny position[2] but succeeds in heavy woodland shade[K].

Hybridizes freely with other members of this genus. Plants are growing and fruiting well at Wakehurst Place in Sussex, but they do not generally do well in Britain[14].

Resistant to honey fungus[16].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Mahonia nervosa. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Mahonia nervosa.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Mahonia nervosa
Genus
Mahonia
Family
Berberidaceae
Imported References
Edible uses
[1][2][3][4][5]
Medicinal uses
[10][7][11][12]
Material uses & Functions
[6][3][7][8][9]
Botanic
[14][17][5]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Ground cover
Provides forage for
Provides shelter for
Environment
Hardiness Zone
6
Heat Zone
?
Water
moderate
Sun
full sun
Shade
permanent shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy, clay, heavy clay
Soil Water Retention
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    Soil surface
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    evergreen
    Herbaceous or Woody
    woody
    Life Cycle
    perennial
    Growth Rate
    slow
    Mature Size
    0.6 x 1 meters
    Fertility
    ?
    Pollinators
    Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? 1.01.1 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
    2. ? 2.02.12.2 Simmons. A. E. Growing Unusual Fruit. David and Charles ISBN 0-7153-5531-7 (1972-00-00)
    3. ? 3.03.13.23.3 Turner. N. J. and Szczawinski. A. Edible Wild Fruits and Nuts of Canada. National Museum of Natural Sciences (1978-00-00)
    4. ? 4.04.14.24.3 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
    5. ? 5.05.15.25.3 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    6. ? 6.06.1 Gordon. A. G. and Rowe. D. C. f. Seed Manual for Ornamental Trees and Shrubs. ()
    7. ? 7.07.17.27.37.47.5 Moerman. D. Native American Ethnobotany Timber Press. Oregon. ISBN 0-88192-453-9 (1998-00-00)
    8. ? 8.08.18.2 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
    9. ? 9.09.19.2 Thomas. G. S. Plants for Ground Cover J. M. Dent & Sons ISBN 0-460-12609-1 (1990-00-00)
    10. ? 10.010.110.2 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
    11. ? 11.011.111.211.311.4 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
    12. ? 12.012.112.2 Weiner. M. A. Earth Medicine, Earth Food. Ballantine Books ISBN 0-449-90589-6 (1980-00-00)
    13. ? 13.013.1 Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
    14. ? 14.014.114.214.3 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
    15. ? Thomas. G. S. Ornamental Shrubs, Climbers and Bamboos. Murray ISBN 0-7195-5043-2 (1992-00-00)
    16. ? RHS. The Garden. Volume 112. Royal Horticultural Society (1987-00-00)
    17. ? Hitchcock. C. L. Vascular Plants of the Pacific Northwest. University of Washington Press (1955-00-00)

    Cite error: <ref> tag with name "PFAFimport-67" defined in <references> is not used in prior text.


    Retrieved from "https://practicalplants.org/w/index.php?title=Mahonia_nervosa&oldid=78545"
    Facts about "Mahonia nervosa"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyBerberidaceae +
    Belongs to genusMahonia +
    Functions asGround cover +
    Has binomial nameMahonia nervosa +
    Has common nameOregon Grape +
    Has drought toleranceIntolerant +
    Has edible partFruit + and Leaves +
    Has edible useUnknown use +
    Has fertility typeInsects +
    Has flowers of typeHermaphrodite +
    Has growth rateSlow +
    Has hardiness zone6 +
    Has lifecycle typePerennial +
    Has material partUnknown part +
    Has material useDye +
    Has mature height0.6 +
    Has mature width1 +
    Has medicinal partUnknown part +
    Has medicinal useAntiarthritic +, Antibacterial +, Antitumor +, Blood tonic +, Laxative + and Tonic +
    Has search namemahonia nervosa + and oregon grape +
    Has shade tolerancePermanent shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy +, Loamy +, Clay + and Heavy clay +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameMahonia nervosa +
    Has water requirementsmoderate +
    Inhabits ecosystem nicheSoil surface +
    Is deciduous or evergreenEvergreen +
    Is herbaceous or woodyWoody +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedNo +
    PFAF material use notes migratedNo +
    PFAF medicinal use notes migratedNo +
    PFAF propagation notes migratedNo +
    PFAF toxicity notes migratedYes +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa +, Mahonia nervosa + and Mahonia nervosa +