トモエソウMeanings1noungreat St. John's wort; giant St. John's wortusually written using kana aloneA flowering plant (Hypericum ascyron) native to East Asia. The name is usually written in katakana.トモエソウは夏なつに黄き色いろい花はなを咲さかせる。Great St. John's wort blooms yellow flowers in summer.
