Inggeris

(a flower) comes to open _(takkur)
change its state from a bud to a flower _(takkur)
― the cherry blooms

Japanese

(花が)開く _(takkur)
つぼみから花へとその状態を変える _(takkur)
― 桜が咲く; 桜の花が咲く; 桜の花が開花する

_{takkur (2016-09-28 09:48:29)}

(TK Sep 28, 2016) a bud become a flower by the action "咲く". And "桜" in the first example "桜が咲く" actually means "a cherry flower"

_{takkur (2016-09-28 09:48:29)}

(TK Sep 28, 2016) 01346804-v or 00542120-v might be more suitable for the hypernym