Snow Whites are flowers that grow on the mountains within the Land of the Yuki-Onna.
Snow Whites are said to have the power of matchmaking. 17 year-old Yuki-Onna gather these flowers from the mountains before they present them at the temple before praying. They pray for a good match and lucky finds.
Yukari later reveals that she has used the flower in magical potions before she reveals the true properties of it. The Snow White's pollen has light hallucinogentic properties, the kind that can allure the opposite sex.