The Making of a May Apple

In the middle of this May Apple blossom is the making of the May Apple itself. Once the petals fall the apple will turn green.

This is the American version of the Mandrake of Harry Potter fame. Folklore is that pulling a mandrake up by the roots will cause the plant to scream making a mere human crazy. The plant is poisonous (although the fruit may not be in moderation), so this may or may not be the source of the story.