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:
鬼島 余話 言夢 寒者 稚妓
Names and idioms similar to 蛍草:
牧草 草加部 除草機 浅草観音 誰袖草
Yojijukugo(idioms with 4 Kanji characters) including 蛍草:
山川草木 打草驚蛇 魯魚章草
Idioms including 蛍草:
草の根を分けて探す 道草を食う
Proverbs including 蛍草:
草木も眠る丑三つ時 鳴く蝉よりも鳴かぬ蛍が身を焦がす 草加越谷千住の先