These are called honesty (Lunaria annua), judaspenning in Dutch (with a green-veined white (Pieris napi), klein geaderd witje in Dutch, as a visitor).
I think these flowers are called silver dollars in the colonies:
Olympus Stylus 1s, 300mm, ISO100, f2.8, 1/2000s
Intermezzo: for those who are interested in what this butterfly looks like up close, look no further:
Olympus Stylus 1s, 200mm, ISO200, f5.6, 1/200s
End of intermezzo.
But what are these?
Olympus Stylus 1s, 42mm, ISO800, f8, 1/100s
Does anyone know?