evening primrose

Any of various plants of the family Onagraceae and especially the genus Oenothera of the Americas, having four-petaled usually yellow flowers that open in the evening and whose seeds yield an oil used in herbal medicine.

evening primrose

Herbal medicine
A biennial herb that contains essential fatty acids, including gamma linoleic acid; it is has been widely used for heart disease, hypercholesterolaemia, premenstrual syndrome, endometriosis, breast pain, menopause, eczema, psoriasis, acne, osteoporosis, multiple sclerosis, cancer, Alzheimer's disease, asthma, diabetes, hyperactivity and gastrointestinal disorders.

There are no peer-reviewed studies to support the efficacy of evening primrose.

Toxic effects
Headaches, nausea, seizures, skin rashes.

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References in periodicals archive

New constituents from the roots of Oenothera biennis and their free radical scavenging and ferric reducing activity.

Toping height and irrigation methods on yield and essential oils of evening primrose (Oenothera biennis

Oil obtained from the seeds of Evening Primrose (Oenothera biennis L., Onagraceae; EPO) is widely used as a dietary supplement due to its high content of polyunsaturated fatty acids, in particular, [gamma]-linolenic acid (18:3n-6) whose beneficial effects have been reported in rheumatic and arthritic conditions, atopic dermatitis, premenstrual and menopausal syndrome, and diabetic neuropathy (Mahady et al.

The sterols isolated from Evening Primrose oil modulate the release of proinflammatory mediators

Effect of late salinization of chia (Salvia hispanica), stock (Matthiola tricuspidata) and evening primrose (Oenothera biennis) on their ol content and quality.

Fatty Acid Composition of Matthiola longipetala ssp. Bicornis from Turkey

Pattern of defoliation and its effect on photosynthetic capacity in Oenothera biennis .

Is the inverse leafing phenology of the dry forest understory shrub Jacquinia nervosa (Theophrastaceae) a strategy to escape herbivory?

Native Americans consumed the leaves, roots, and seedpods of evening primrose (Oenothera biennis) for food, and made extracts from it to treat a variety of conditions.

Treating hot flushes without hormone replacement therapy. (Applied evidence: research findings that are changing clinical practice)

Herbivore responses to Oenothera biennis (Onagraceae): effects of the host plant's size, genotype, and resistant conspecific neighbors.

Patterns of selection on phytogphage resistance in Ipomoea purpurea

Oenothera biennis L.; SYN: Oenothera pycnocarpa Atk.

The vascular flora and vegetational communities of Dutro woods nature preserve, Delaware county, Indiana

Website: www.dewolfchem.com, www.glenncorp.com INGREDIENTS WT% Petrolatum 36 Organic beeswax (Cera Alba) 10 Sweet almond oil (HallStar) (Prunus amygdalus dulcis oil) 14 Carnauba wax (Copernicia cerifera cera) 7 Candelilla wax (Candelilla Cera) 6 Shea butter-Ultra Refined (HallStar) (Butyrospermum parkii) 10 Sal butter (HallStar) (Shorea robusta seed butter) Lanolin 5 5 (Sodium benzoate) Tea tree oil (HallStar) (Melaleuca alternifolia leaf oil) 2.5 Evening primrose oil (HallStar) (Oenothera biennis oil) 2 Olive oil--certified organic (HallStar) (Olea europaea fruit 1.5 oil) Peppermint oil (HallStar) (Mentha piperita oil) 1

Hair styling pomade

Predictions of fate from rosette size in four "biennial" species: Verbascum thapsus, Oenothera biennis, Daucus carota, and Tragopogon dubius.

Plastic relationships between reproductive and vegetative mass in Solidago altissima

Oenothera biennis (10.2% of the stems) was the only native species commonly found in Plot III.

Evaluating the quality of a disturbed wetland in southwestern Indiana: a survey of native and exotic flora at Vectren Conservation Park

INCI name: Oenothera Biennis (evening primrose) seed extract Suggested use levels: 2-3%

Correction

At least three species, Krigia virginica, Oenothera biennis and Aureolaria pedicularia, were present within our 2-m radius observation circles but were never selected.

Nectar Plant Selection by the Karner Blue Butterfly (Lycaeides melissa samuelis) at the Indiana Dunes National Lakeshore