Sakura is the national flower of which country?

According to my Japanese brother in law and japanese friends chrysanthemum is recognized as the national flower in their country because it is the Imperial Emblem of Japan.

nomad, the chrysanthemum is the flower of the Emperor of Japan

Japan does not have an official national flower. However, both cherry blossom and chrysanthemum are considered unofficial national flowers.

Japan nailed it in the flower department! 🌸🇯🇵😍

I didn't pick Japan because I thought their national flower was the chrysanthemum.