Honesty

Lunaria - honesty is a plant that unexpectedly arrived in the garden, and which now nestles snuggly and happily in the bottom of the hedgerow where it positively glows. 

A cheeky little Honesty fairy by Margaret Tarrant - illustrator - shaking the seeds out of their pods. 

You can eat the seeds, which are mustard like, the root apparently can be eaten raw or boiled, and it is possible to sprinkle the flowers on salads.

via

Lunaria - "moon shaped" comes from these showy translucent disc-shaped seedpods with a silvery sheen. If they are left unpicked they remain on the plant throughout the winter.

Honesty is native to the Balkans and south west Asia, it is now naturalised throughout the temperate world. In south east Asia it is called the money plant and in the USA it is commonly known as silver dollars, Chinese money or Chinese coins. In Denmark it is known as judaspenge and in the Netherlands as judaspenning - coins of Judas, as an allusion to the story of Judas Iscariot and the thirty pieces of silver he was paid for betraying Christ.