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Euryale ferox - Salisb.

Common Name Foxnut, Euryale
Family Nymphaeaceae
USDA hardiness 7-10
Known Hazards None known
Habitats Ponds and lakes in lowland, C. and S. Japan[58].
Range E. Asia - China to N. India.
Edibility Rating    (3 of 5)
Other Uses    (0 of 5)
Weed Potential No
Medicinal Rating    (2 of 5)
Frost Hardy Water Plants Full sun
Euryale ferox Foxnut, Euryale

Euryale ferox Foxnut, Euryale


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Physical Characteristics

 icon of manicon of flower
Euryale ferox is a PERENNIAL growing to 1 m (3ft 3in) by 3 m (9ft).
It is hardy to zone (UK) 8. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: acid, neutral and basic (alkaline) soils. It cannot grow in the shade. It can grow in water.




Edible Uses

Edible Parts: Fruit;  Seed;  Stem.
Edible Uses:

Fruit[2]. Soft and pulpy, it is about the size of a small orange[2]. It is highly esteemed in China as a cooling tonic food[183]. Seed - fresh or dried[183, 200]. The seed is about the size of a pea, each fruit containing from 8 to 15 seeds[2]. The seed is usually roasted and then eaten[218]. It is also used as a source of starch[183]. A nutritional analysis is available[218]. Very young stalks and rhizomes[2, 183]. Rich in starch[2].

Figures in grams (g) or miligrams (mg) per 100g of food.
Seed (Dry weight)
  • 400 Calories per 100g
  • Water : 0%
  • Protein: 10.3g; Fat: 0.2g; Carbohydrate: 89g; Fibre: 0.2g; Ash: 0.6g;
  • Minerals - Calcium: 34mg; Phosphorus: 100mg; Iron: 1.5mg; Magnesium: 0mg; Sodium: 0mg; Potassium: 66mg; Zinc: 0mg;
  • Vitamins - A: 0mg; Thiamine (B1): 0mg; Riboflavin (B2): 0mg; Niacin: 0mg; B6: 0mg; C: 0mg;
  • Reference: [ 218]
  • Notes:

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.

Analgesic;  Aphrodisiac;  Astringent;  Deobstruent;  Oxytoxic;  Tonic.

The leaf is used in cases of difficult parturition[218]. All parts of the plant are considered to be astringent, deobstruent and tonic[218]. The seed is a sweet and sour astringent herb that acts as a tonic for the kidney and the spleen[238]. The seed is analgesic and aphrodisiac[218]. It is taken internally in the treatment of chronic diarrhoea, vaginal discharge, kidney weakness associated with frequent urination, impotence, premature and involuntary ejaculation and nocturnal emissions[238, 279].

Other Uses

None known

Cultivation details

Management: Standard;  Regional Crop;  Staple Crop: Balanced carb.

A water plant, it requires a rich soil, preferably growing in still water[238]. It can be grown in still or slowly flowing water[200]. In cultivation in temperate greenhouses, the plant is often grown as an annual[200]. It requires about 0.75 cubic metres of root run[200]. This species is not very cold hardy. One report says that it succeeds in zone 8[200] which would mean that it tolerates temperatures down to between -5 and -10°c but this must be viewed with some doubt. It is unlikely to succeed outdoors in Britain, at least when grown as a perennial[K]. Frequently cultivated as an edible plant in China and India, the seeds are normally available in Chinatown markets in the West[183].


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Seed - best sown as soon as it is ripe, the seed has a short viability and must not be allowed to become dry. Sow the seed in pots in a greenhouse at about 21°c and immerse the pots in water. As soon as they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.

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 :

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Botanical References


Links / References

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Readers comment

Ms. Redkar   Thu May 8 2008

Can Eurayle ferox be tested for AntiParkinson's activity ?

albert   Tue Oct 28 2008

i'd like to know more about herbs.i study herbal medicine in school.

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