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Summary
Physical Characteristics
Oenanthe javanica is a PERENNIAL growing to 1 m (3ft 3in).
See above for USDA hardiness. It is hardy to UK zone 5. It is in flower from June to August, and the seeds ripen from August to October. The species is hermaphrodite (has both male and female organs) and is pollinated by Insects. The plant is self-fertile.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It cannot grow in the shade. It prefers wet soil and can grow in water.
UK Hardiness Map
US Hardiness Map
Synonyms
O. stolonifera.
Habitats
Ground Cover; Pond; Bog Garden; Cultivated Beds;
Edible Uses
Edible Parts: Leaves Root Seed Shoots
Edible Uses: Condiment
Young leaves and stems - raw or cooked[2, 46, 61, 105]. The leaves are also used as a seasoning in soups etc[179, 183]. The flavour is reminiscent of carrots or parsley[206]. The young shoots that sprout from the root in winter are best[116, 206]. A major vegetable in many parts of the Orient, the leaves are a rich source of vitamins and minerals (Analysis available)[218]. Root - cooked. Highly esteemed in Japan[116], the roots can grow up to 30cm long in water[183]. Some caution is advised, see the notes above on toxicity. Seed is said to be edible[183].
References More on Edible Uses
| Composition
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| Figures in grams (g) or miligrams (mg) per 100g of food.
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Leaves (Dry weight)
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- 298 Calories per 100g
- Water : 0%
- Protein: 19.9g; Fat: 3.2g; Carbohydrate: 62.8g; Fibre: 12.8g; Ash: 14.9g;
- Minerals - Calcium: 1202mg; Phosphorus: 585mg; Iron: 32mg; Magnesium: 0mg; Sodium: 192mg; Potassium: 4713mg; Zinc: 0mg;
- Vitamins - A: 24mg; Thiamine (B1): 0.64mg; Riboflavin (B2): 2.34mg; Niacin: 10.6mg; B6: 0mg; C: 149mg;
- Reference: [ ]
- Notes:
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Medicinal Uses
Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.
Depurative Febrifuge Styptic
The whole plant is depurative, febrifuge and styptic[147, 178]. A decoction is used in the treatment of epidemic influenza, fever and discomfort, jaundice, haematuria and metrorrhagia[147]. The seed contains 3.5% essential oil. This is effective at large dilutions against pathogenic fungi[218].
References More on Medicinal Uses
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Other Uses
Essential
Spreading rapidly by means of suckers, it makes a good ground cover plant for wet situations. The variegated cultivar 'Flamingo' has been especially recommended[200].
Special Uses
Ground cover Scented Plants
References More on Other Uses
Cultivation details
Requires a wet fertile soil or shallow water and a sunny position[200]. This plant is quite possibly not hardy in Britain, [200] gives a hardiness zone of 10, which means that it is not frost tolerant. However [58 and 266] say that it grows in all areas of China and 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[206]. The sub-species O. javanica rosthornii is found at elevations up to 4000 metres in China and is sometimes also found in drier habitats such as grassland at forest margins[266] - this form should be hardier than the species[K]. 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. [200] says that O. stolonifera japonica. (Miq.)Maxim. is a synonym of O. javanica. The Flora of China treats this as a highly variable single species under the name O. javanica and recognizes at least one sub-species[266]. This species is occasionally cultivated for its edible root[183] or for its edible leaves according to another report[179], there are some named varieties[183]. There are two main forms of this species, a red form has edible shoots whilst a white form is grown for its medicinal root[178]. In Japan this plant and six other herbs are customarily boiled in rice gruel on January 7th[183]. The cultivar 'Su Zhou' is medium early and has few fibres plus an excellent taste[183].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
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Propagation
Seed - sow spring in a cold frame. Germination is erratic[206]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring[206]. 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[200]. Stem tip cuttings[200]. Any part of the stem roots easily[206].
Other Names
If available other names are mentioned here
Found In
Countries where the plant has been found are listed here if the information is available
Weed Potential
Right plant wrong place. We are currently updating this section.
Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(Blume.)DC.
Botanical References
58200
Links / References
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