Oenothera biennis, also known as evening primrose, is a wild plant with medicinal uses. The seeds contain essential fatty acids, including linoleic acid (LA) and gamma-linolenic acid (GLA), and are traditionally used to treat conditions such as:
eczema, asthma, rheumatoid arthritis, premenstrual and menopausal syndrome, bruises, hemorrhoids, and sore throats.