おとぎりそう 弟切草 LinksSentence search for 弟切草Sentence search for おとぎりそうSentence search for オトギリソウKanji details for 弟, 切 and 草Edit in JMdict Noun1. Hypericum erectum (species of St. John's wort)Usually written using kana aloneOther formsオトギリソウ Discussions Log in to talk about this word.