Vaccaria hispanica (syn.
Saponaria vaccaria L.,
Vaccaria pyramidata Medik.,
Cowherb,
Cowcockle,
Cow-basil,
Forbidden Palace Flower) is an annual flowering plant of the family Caryophyllaceae with pale rose-colored flowers. It is a native of Southern & Central Europe but occurs as a naturalised species in many other areas.
It is occasionally grown as an ornamental garden flower.
Source
die.net