"Tatterhood" is a Fairy Tale from Norway. In it, a beggar woman tells a queen that she will have children if she eats one of two flowers, but warns her that, since one is pretty and one is ugly, to ONLY eat the pretty one. The Queen eats the ugly one as well. Then she gives birth to two daughters, one of whom is beautiful and good, and the other one a little... different. Can be read online here. Also, remade by Opal's Free Stories.