Common evening-primrose

Quick look

Oenothera biennis, the common evening-primrose, is a species of flowering plant in the family Onagraceae, 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. Evening primrose oil is produced from the plant.

• It belongs to the Onagraceae family. ^iNaturalist
• USDA PLANTS describes it as an herb (forb) with a biennial life cycle. ^{USDA PLANTS}
• USDA PLANTS lists it as native in the lower 48 states and records it in 43 states. ^{USDA PLANTS}
• NatureServe lists it as native to New Jersey. ^NatureServe
• In New Jersey, most iNaturalist sightings of it in flower come in July–November. ^iNaturalist
• USDA PLANTS lists its flower color as yellow. ^{USDA PLANTS}
• USDA PLANTS gives its bloom period as late spring. ^{USDA PLANTS}
• USDA PLANTS lists a mature height of about 5 ft. ^{USDA PLANTS}
• iNaturalist has 1,181 research-grade sightings of it in New Jersey, ranking #79 among the 110 flowers on our New Jersey list. ^iNaturalist