England: Roses

The rose is the national flower of England, a usage dating back to the English civil wars of the fifteenth century (later called Wars of the Roses), in which a red rose represented the House of Lancaster, and a white rose represented the House of York. The Tudor dynasty created the Tudor rose, which united both the white and the red roses, a symbolism dramatized by Shakespeare in his play Richard III. The traditional ballad "The Rose of England" (Child 166) recounts the seizure of the crown by Earl of Richmond (who became Henry VII of England, the founder the Tudor dynasty), using the "red rose" as an allegory for Henry.

Thanks to Ms Rassa Bhat

Nederland: Roses

The rose was an icon of veneration in the pre-Christian era, and was used in ancient Rome to symbolize devotion to the goddess Venus. Following the Christianization of Rome under the emperor Constantine, the rose became identified with the Virgin Mary. The rose symbol eventually led to the creation of the rosary and other devotional prayers in Christianity.

Thanks to Ms Eline.