How to read: ほたるぐさ、ほたるそう
Pronunciation: 
Same names and idioms in reading:
螢草
Names and idioms with total stroke of 20:
燐寸 妨碍 秋商 小津和 婿金
Names and idioms similar to 蛍草:
磯煙草 諫草 蚊帳吊草 桔梗唐草 桔梗草
Yojijukugo(idioms with 4 Kanji characters) including 蛍草:
翦草除根 草頭天子 草木禽獣
Idioms including 蛍草:
草の根を分けて探す 道草を食う
Proverbs including 蛍草:
草を打って蛇を驚かす 三遍回って煙草にしょ 二足の草鞋を履く