Binomial name: Gymnaster savatieri, a kind of chrysanthemum is one of seasonal flowers suitable for tea room from May to June.
Miyako means Kyoto, and it implies when it was the capital of the country. Wasure(ru) means to forget.
The name came from a story of Emperor Juntoku when he was exiled to Sado Island after a war, this flower made him feel at home and he could ease his pain of missing Kyoto.
With this origin, this flower is used in occasions of brief separation or momentary relaxation.