What flower is known as the royal flower of France?

The Fleur-de-lis is recognized as the royal flower of France due to its historical significance and association with the French monarchy. This stylized lily design has been used as a symbol of French royalty since the Middle Ages and has been emblematic of French heraldry. Its association with purity and light can be traced back to various interpretations of its form, suggesting both a divine connection and the virtues of the French crown.

Primary documented use in royal coats of arms and architectural motifs reinforces its status and links to the dignity of the French state. Although the rose and lily are notable flowers, they do not hold the same distinct royal connotation as the Fleur-de-lis. The orchid, while beautiful, lacks the historical depth tied to French royalty that the Fleur-de-lis embodies. Thus, the Fleur-de-lis stands clearly as the floral symbol designated as the royal flower of France.