A Riddling Tale is a German fairy tale

Fairy tale

A fairy tale is a type of short story that typically features such folkloric characters, such as fairies, goblins, elves, trolls, dwarves, giants or gnomes, and usually magic or enchantments. However, only a small number of the stories refer to fairies...

 collected by the Brothers Grimm

Brothers Grimm

The Brothers Grimm , Jacob Grimm and Wilhelm Grimm , were German academics, linguists, cultural researchers, and authors who collected folklore and published several collections of it as Grimm's Fairy Tales, which became very popular...

 in Grimm's Fairy Tales

Grimm's Fairy Tales

Children's and Household Tales is a collection of German origin fairy tales first published in 1812 by Jacob and Wilhelm Grimm, the Brothers Grimm. The collection is commonly known today as Grimms' Fairy Tales .-Composition:...

.

It is Aarne-Thompson type 407, the girl as a flower. The tale portion of it is subordinate to the riddle, and the tale is not widely found in the oral tradition.

Story and riddle

Three women were changed

Shapeshifting

Shapeshifting is a common theme in mythology, folklore, and fairy tales. It is also found in epic poems, science fiction literature, fantasy literature, children's literature, Shakespearean comedy, ballet, film, television, comics, and video games...

to identical flowers. One was allowed home at night and told her husband to pick and free her. He did so.

How did he recognize her?

Answer

The other flowers, having been in the field all night, had dew on them; the wife did not.