The Black Prince’s White Rose?….
I do not actually know all the badges used by Edward, the Black Prince, but the ‘flowers’ depicted on his crown in this illustration look as if they might be the White Rose of York, although I do know that the White Rose was also a Mortimer badge. But is either likely to be adopted by the Black Prince? Admittedly the picture is in black and white, but they aren’t shaded except in the centre of each bloom. They may not even be flowers, although they look as if they are to me. I know I show my ignorance here.
The illustration is from British Costume during 19 Centuries by Mrs Charles H Ashdown, (London, 1910). (Photo by The Print Collector/Print Collector/Getty Images)