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Oenanthe javanica
  • Water Dropwort

a perennial member of the Oenanthe genus in the family Umbelliferae.

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
  • no shade
    No shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsaquatic
    Aquatic
    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 Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 10
    Zone 10
    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
Oenanthe javanica has 0 edible uses listed
Oenanthe javanica has 0 material uses listed
Oenanthe javanica has 0 medicinal uses listed

Uses

Toxic parts

Although no specific mention of toxicity has been seen for this species, it belongs to a genus that contains a number of very poisonous plants and so some caution is advised[K]. It is said to contain the alleged 'psychotroph' myristicine[1].

Edible uses

Notes

Young leaves and stems - raw or cooked[2][3][4][5]. The leaves are also used as a seasoning in soups etc[6][7]. The flavour is reminiscent of carrots or parsley[8]. The young shoots that sprout from the root in winter are best[9][8]. A major vegetable in many parts of the Orient, the leaves are a rich source of vitamins and minerals (Analysis available)[1].

Root - cooked. Highly esteemed in Japan[9], the roots can grow up to 30cm long in water[7]. Some caution is advised, see the notes above on toxicity.

Seed is said to be edible[7].

Unknown part

Condiment

Leaves

Unknown use

Root

Unknown use

Seed

Unknown use

Material uses

Spreading rapidly by means of suckers, it makes a good ground cover plant for wet situations. The variegated cultivar 'Flamingo' has been especially recommended[10].

Unknown part

Essential

Medicinal uses(Warning!)

The whole plant is depurative, febrifuge and styptic[11][12]. A decoction is used in the treatment of epidemic influenza, fever and discomfort, jaundice, haematuria and metrorrhagia[11]. The seed contains 3.5% essential oil. This is effective at large dilutions against pathogenic fungi[1].

Unknown part

Depurative
Febrifuge
Styptic

Ecology

Ecosystem niche/layer

Soil surface

Ecological Functions

Ground cover

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a cold frame. Germination is erratic[8]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer.

Division in spring[8]. Large 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. Layering[10].

Stem tip cuttings[10]. Any part of the stem roots easily[8].

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



Cultivation

Requires a wet fertile soil or shallow water and a sunny position[10].

This plant is quite possibly not hardy in Britain, [10] gives a hardiness zone of 10, which means that it is not frost tolerant. However [13] says that it grows in all areas of lowland Japan and this should include areas that do experience frosts and snow. Another report says that many forms of this species are not frost-hardy, though some forms have hardy roots[8]. There is also a lot of confusion over the correct name for this species. Some reports give O. stolonifera. DC. or O. stolonifera. Wall as the correct name whilst other reports say that these names are synonyms of O. javanica. [10] says that O. stolonifera japonica. (Miq.)Maxim. is a synonym of O. javanica. It is quite possible that both O. javanica and O. stolonifera are valid names and the uses listed here belong partly to each species. More research is required.

This species is occasionally cultivated for its edible root[7] or for its edible leaves according to another report[6], there are some named varieties[7]. There are two main forms of this species, a red form has edible shoots whilst a white form is grown for its medicinal root[12]. In Japan this plant and six other herbs are customarily boiled in rice gruel on January 7th[7]. The cultivar 'Su Zhou' is medium early and has few fibres plus an excellent taste[7].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Oenanthe javanica. 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 Oenanthe javanica.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Oenanthe javanica
Genus
Oenanthe
Family
Umbelliferae
Imported References
Edible uses
[2][3][4][5][6][7][8][9][1]
Medicinal uses
[11][12][1]
Material uses & Functions
[10]
Botanic
[13][10]
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
10
Heat Zone
?
Water
aquatic
Sun
full sun
Shade
no shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy, 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
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    1 x meters
    Fertility
    self fertile
    Pollinators
    Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? 1.01.11.21.31.4 Duke. J. A. and Ayensu. E. S. Medicinal Plants of China Reference Publications, Inc. ISBN 0-917256-20-4 (1985-00-00)
    2. ? 2.02.1 Hedrick. U. P. Sturtevant's Edible Plants of the World. Dover Publications ISBN 0-486-20459-6 (1972-00-00)
    3. ? 3.03.1 Uphof. J. C. Th. Dictionary of Economic Plants. Weinheim (1959-00-00)
    4. ? 4.04.1 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
    5. ? 5.05.1 Tanaka. T. Tanaka's Cyclopaedia of Edible Plants of the World. Keigaku Publishing (1976-00-00)
    6. ? 6.06.16.2 Reid. B. E. Famine Foods of the Chiu-Huang Pen-ts'ao. Taipei. Southern Materials Centre (1977-00-00)
    7. ? 7.07.17.27.37.47.57.67.7 Facciola. S. Cornucopia - A Source Book of Edible Plants. Kampong Publications ISBN 0-9628087-0-9 (1990-00-00)
    8. ? 8.08.18.28.38.48.58.6 Larkcom J. Oriental Vegetables John Murray ISBN 0-7195-4781-4 (1991-00-00)
    9. ? 9.09.19.2 Brooklyn Botanic Garden Oriental Herbs and Vegetables, Vol 39 No. 2. Brooklyn Botanic Garden (1986-00-00)
    10. ? 10.010.110.210.310.410.510.610.7 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    11. ? 11.011.111.2 ? A Barefoot Doctors Manual. Running Press ISBN 0-914294-92-X ()
    12. ? 12.012.112.2 Stuart. Rev. G. A. Chinese Materia Medica. Taipei. Southern Materials Centre ()
    13. ? 13.013.1 Ohwi. G. Flora of Japan. (English translation) Smithsonian Institution (1965-00-00)


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    Facts about "Oenanthe javanica"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyUmbelliferae +
    Belongs to genusOenanthe +
    Functions asGround cover +
    Has binomial nameOenanthe javanica +
    Has common nameWater Dropwort +
    Has drought toleranceIntolerant +
    Has edible partUnknown part +, Leaves +, Root + and Seed +
    Has edible useCondiment + and Unknown use +
    Has fertility typeSelf fertile + and Insects +
    Has flowers of typeHermaphrodite +
    Has hardiness zone10 +
    Has lifecycle typePerennial +
    Has material partUnknown part +
    Has material useEssential +
    Has mature height1 +
    Has medicinal partUnknown part +
    Has medicinal useDepurative +, Febrifuge + and Styptic +
    Has search nameoenanthe javanica + and water dropwort +
    Has shade toleranceNo shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameOenanthe javanica +
    Has water requirementsaquatic +
    Inhabits ecosystem nicheSoil surface +
    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 migratedNo +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Oenanthe javanica +, Oenanthe javanica +, Oenanthe javanica +, Oenanthe javanica +, Oenanthe javanica +, Oenanthe javanica +, Oenanthe javanica + and Oenanthe javanica +