How do you say flower in Japanese?
— 咲く (さく, sakú); 花

Specialized synonyms for flower in Japanese
columbineオダマキ (odamaki)
pinkピンク (pinku); 桃色 (ももいろ, momoiro)
sunflower向日葵 (ひまわり, himawari)
Terms within for flower in Japanese
ovary卵巣 (らんそう, ransō)