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Viola japonica

a perennial member of the Viola genus in the family Violaceae.

Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • None
    None
    There are no functions defined for this plant. Do you know of some? Click the edit button to add them!
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • light shade
    Light 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
    Acid to Neutral
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • ?
    Unknown
    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
Viola japonica has 0 edible uses listed
Viola japonica has 0 medicinal uses listed

Uses

Edible uses

Notes

Young leaves and flower buds - raw or cooked[1]. When added to soup they thicken it in much the same way as okra[2][3].

Root - cooked. Mucilaginous[1]. Rich in starch, it is eaten in soups[4].

A tea can be made from the leaves[2].

Flowers

Unknown use

Leaves

Unknown use

Root

Unknown use

Unknown part

Tea

Material uses

There are no material uses listed for Viola japonica.

Medicinal uses(Warning!)

The whole plant is anodyne, anti-inflammatory, antiphlogistic and depurative[5][6]. A decoction is used in the treatment of abscesses, boils, acute conjunctivitis, hepatitis, acute jaundice, laryngitis and ulcers[5][6][7].

Unknown part

Anodyne
Antiphlogistic
Depurative

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - best sown in the autumn in a cold frame. Sow stored seed in early spring in a cold frame. Prick out the seedlings into individual pots when they are large enough to handle and plant them out in the summer. Division in the autumn or just after flowering. Larger divisions can be planted out direct into their permanent positions, though we have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well. Plant them out in the summer or the following spring.

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



Cultivation

Prefers a cool moist well-drained humus-rich soil in partial or dappled shade and protection from scorching winds. Tolerates sandstone and limestone soils but becomes chlorotic if the pH is too high. Prefers a pH between 6 and 6.5[8]. All members of this genus have more or less edible leaves and flower buds, though those species with yellow flowers can cause diarrhoea if eaten in large quantities[9][2][3].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Viola japonica. 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 Viola japonica.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Viola japonica
Genus
Viola
Family
Violaceae
Imported References
Edible uses
[1][2][3][4]
Medicinal uses
[5][6][7]
Material uses & Functions
Botanic
[10][8]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
?
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light shade
Soil PH
acid, neutral
Soil Texture
sandy, loamy, clay
Soil Water Retention
well drained
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    0.2 x meters
    Fertility
    ?
    Pollinators
    Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? 1.01.11.2 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
    2. ? 2.02.12.22.3 Harrington. H. D. Edible Native Plants of the Rocky Mountains. University of New Mexico Press ISBN 0-8623-0343-9 (1967-00-00)
    3. ? 3.03.13.2 McPherson. A. and S. Wild Food Plants of Indiana. Indiana University Press ISBN 0-253-28925-4 (1977-00-00)
    4. ? 4.04.1 Kunkel. G. Plants for Human Consumption. Koeltz Scientific Books ISBN 3874292169 (1984-00-00)
    5. ? 5.05.15.2 ? A Barefoot Doctors Manual. Running Press ISBN 0-914294-92-X ()
    6. ? 6.06.16.2 Yeung. Him-Che. Handbook of Chinese Herbs and Formulas. Institute of Chinese Medicine, Los Angeles (1985-00-00)
    7. ? 7.07.1 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
    8. ? 8.08.1 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    9. ? Elias. T. and Dykeman. P. A Field Guide to N. American Edible Wild Plants. Van Nostrand Reinhold ISBN 0442222009 (1982-00-00)
    10. ? Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution (1965-00-00)


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    Facts about "Viola japonica"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyViolaceae +
    Belongs to genusViola +
    Has drought toleranceIntolerant +
    Has edible partFlowers +, Leaves +, Root + and Unknown part +
    Has edible useUnknown use + and Tea +
    Has fertility typeInsects +
    Has flowers of typeHermaphrodite +
    Has lifecycle typePerennial +
    Has mature height0.2 +
    Has medicinal partUnknown part +
    Has medicinal useAnodyne +, Antiphlogistic + and Depurative +
    Has search nameviola japonica + and x +
    Has shade toleranceLight shade +
    Has soil ph preferenceAcid + and Neutral +
    Has soil teclayture preferenceClay +
    Has soil teloamyture preferenceLoamy +
    Has soil tesandyture preferenceSandy +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomy nameViola japonica +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +