Botanical Name : Oenothera biennis
Species: O. biennis
Synonyms: Weedy evening-primrose, German rampion, hog weed, King’s cure-all, and fever-plant
Habitat :Oenothera biennis is native to eastern and central North America, from Newfoundland west to Alberta, southeast to Florida, and southwest to Texas, and widely naturalized elsewhere in temperate and subtropical regions.
Oenothera biennis has a life span of two years (biennial) growing to 30–150 cm tall. The leaves are lanceolate, 5–20 cm long and 1–2.5 cm broad, produced in a tight rosette the first year, and spirally on a stem the second year.
Blooming lasts from late spring to late summer. The flowers are hermaphrodite, produced on a tall spike and only last until the following noon. They open visibly fast every evening producing an interesting spectacle, hence the name “evening primrose.”
The blooms are yellow, 2.5–5 cm diameter, with four bilobed petals. The flower structure has an invisible to the naked eye bright nectar guide pattern. This pattern is apparent under ultraviolet light and visible to its pollinators, moths, butterflies and bees.
The fruit is a capsule 2–4 cm long and 4–6 mm broad, containing numerous 1–2 mm long seeds, released when the capsule splits into four sections at maturity.
The mature seeds contain approximately 7–10% gamma-linolenic acid, an essential fatty acid.
Its leaves are edible and traditionally were used as a leaf vegetable
Parts Used: oil from seeds
Constituents: fatty acids :gamma linolenic 9.2%,linoleic 74.6%,oleic 6.7%, palmitic 6.2%
It is used in * Cancer Prevention * Eczema * Hypertension * Nerve/Back Pain * PMS * Rheumatoid_arthritis
Evening primrose seeds contain a fragrant oil that plays an important part natural health. The seed oil contains gamma-linolenic acid (GLA), an omega-6 fatty acid that the body uses to manufacture a prostaglandin vital to soothing inflammation and supporting the immune system. It also helps keep the blood flowing freely, reduces high blood pressure, plays a role in reducing breast cancers1,and lowers cholesterol.
Evening primrose oil is a prized oil in aromatherapy skin care because of its many health benefits.
Evening primrose grown in the garden provided access to the fresh stems and leaves which are demulcent and soothing both to irritated skin and for an irritable stomach. 3
The O. biennis seed oil is used to reduce the pains of premenstrual stress syndrome and is beneficial to the skin of the face. Also, poultices containing O. biennis were at one time used to ease bruises and speed wound healing.
Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider