Badges are displayed on standards and personal objects, as well as on private and public buildings to show ownership or patronage.
[2] The earliest royal heraldic badge is a sprig of common broom, said to have been worn by Geoffrey of Anjou in his cap.
The broom plant or Plantegenest (planta genista in medieval Latin), thus became Geoffrey's nickname; "Plantagenet".
His son Edward I in addition to these, added the golden rose device that he inherited from his mother Eleanor of Provence.
The retrospective usage of the name for all Geoffrey's male descendants became popular in the Tudor era, probably encouraged by the added legitimacy it gave Richard's great-grandson, King Henry VIII of England.