The chrysanthemum has been associated with the Imperial throne since the rule of Emperor Go-Toba in the 12th century, but it did not become the exclusive symbol of the Imperial throne until 1868.
Bunga seruni telah dikaitkan dengan tahta Kekaisaran sejak kekuasaan Kaisar Go-Toba pada abad ke-12, namun tidak menjadi simbol tahta Kekaisaran secara eksklusif sampai 1868.