Circaea lutetiana, known as broad-leaved enchanter's nightshade,[1] is a plant in the evening primrose family, Onagraceae.

The genus name comes from the enchantress Circe of Greek mythology and the specific designation is derived from Lutetia, the Latin name for Paris, which was sometimes referred to as the "Witch City".

[2] Circaea lutetiana is a perennial herbaceous plant with opposite, simple leaves, on slender, green stems.

[3] The leaves are rounded or slightly notched at the base, they narrow gradually to the pointed tip and are not strongly toothed, but have sinuate edges.

[7] North American populations are now considered to be a separate species, Circaea canadensis.