Evening Primrose Oil's Use In Herbal Remedies

Other Common Names: Fever Plant, King's Cureall, Night Willow-herb, Scabish, Scurvish, Sun Drop, Oenothera biennis

Range: Eastern N. America - Labrador, south to Florida and Texas.

Habitat: Dunes, roadsides, railway banks and waste places, often in sandy soils.

The Evening or Tree Primrose, though originally a native of North Arnerica, was imported first into Italy and has been carried all over Europe, being often naturalized on river-banks and other sandy places in Western Europe.

The bark and the leaves are astringent and sedative. They have a proved of use in the treatment of gastro-intestinal disorders of a functionl origin, whooping cough and asthma. A syrup made from the flowers is also an effective treatment for whooping cough. The bark is stripped from the flowering stem and dried for later use, the leaves are also harvested and dried at this time.

Evening primrose oil has become a well-known food supplement since the 1980's. Research suggests that the oil is potentially very valuable in the treatment of multiple sclerosis, pre-menstrual tension, hyperactivity etc. It is also taken internally in the treatment of eczema, acne, brittle nails, rheumatoid arthritis and alcohol-related liver damage. Regular consumption of the oil helps to reduce blood cholesterol levels and lower the blood pressure. The seed is a good source of gamma-linolenic acid, an unsaturated fatty acid which assists the production of hormone-like substances. This process is commonly blocked in the body, causing disorders that affect the uterine muscles, nervous system and metabolism.

The poulticed root is applied to piles and bruises.

A tea made from the roots is used in the treatment of obesity and bowel pains.

The seed contains 28% of a drying oil. It is edible and a very good source of gamma-linoleinc acid, an essential fatty acid that is not found in many plant sources and has numerous vital functions in the body. The seed, however, is very small and difficult to harvest, it has to be done by hand. Overall yields are low, making the oil very expensive to produce.

  • Grieve. A Modern Herbal. Penguin 1984 ISBN 0-14-046-440-9
  • Plants For A Future - A Resource and Information Centre for Edible and other useful plants.

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