Roses or Flowers is one of the four playing card suits in a deck of Swiss-suited playing cards. This suit was invented in 15th century German speaking Switzerland and is a survivor from a large pool of experimental suit signs created to replace the Latin suits. It is equivalent to the Hearts suit in German and French decks.
The rose is represented by a stylised yellow flower, with six leaves and an orange pistil.
In German, the suit is called Rosen.
The following images depict the suit of Roses from an 1850 Swiss-suited pack:
Owlapps.net - since 2012 - Les chouettes applications du hibou