Oenothera macrocarpa (Missouri Evening Primrose)
Oenothera macrocarpa 'Greencourt Lemon'
Botanical name: Oenothera macrocarpa
Common name: Missouri Evening Primrose
Family: Onagraceae
Origin: North America
USDA Plant Hardiness Zone Map
Similar plants: Oenothera macrocarpa (Missouri Evening Primrose)
Oenothera macrocarpa 'Greencourt Lemon'
Link to this plant:
https://toptropicals.com/catalog/uid/oenothera_macrocarpa.htm