Names: Oeno thera = wine resistant, biennis = two years.
English: Evening primrose; Large evening primrose; Tree primrose; Queen of the night.
French: onagre.
Dutch: Koningin van de nacht; Teunisbloem; Nachtkeers; Nachtbloeier; Nachtlampke; Eendagsblomme; Avondsleutelbloem; Avond uilen; Ezelskruid; Patrijskruid; Weinblumen.
Content: gamma-linolenic acid, a rare essential fatty acid.
Region: North America.
Planets: Moon.
Botany: flowering at 11 pm, flowers fall off in the morning.