Hediondilla

Hediondilla is a common name used in several Spanish-speaking countries, particularly in South America, to refer to plants belonging to the genus *Oenothera*. These plants are more widely known in English as evening primroses. The name "hediondilla" itself translates to "little stinky one," likely due to the scent of some species, though not all are noticeably odorous.

The *Oenothera* genus encompasses a diverse group of herbaceous flowering plants, many of which are characterized by their bright yellow, often four-petaled flowers that typically open in the late afternoon or evening, hence the common name "evening primrose." The term "hediondilla" is a colloquialism and can apply to various species within this genus depending on the specific region. For instance, in some areas, *Oenothera triloba* or *Oenothera biennis* might be referred to as hediondilla.

These plants are often found in disturbed soils, along roadsides, in fields, and in meadows. They are native to the Americas but have naturalized in many other parts of the world. Some species have a long history of traditional medicinal use, with extracts or infusions being employed for various ailments, though scientific validation for these uses varies. The seeds of some *Oenothera* species are a source of gamma-linolenic acid (GLA), an omega-6 fatty acid used in dietary supplements.