Chloranthus japonicus
A perennial herb native to East Asia, known for its small white flowers. The Japanese name literally means 'alone and quiet'.
In spring, you can see Chloranthus japonicus blooming in the mountains.
Kanji form is rare and may be encountered in botanical or literary contexts.
The plant was named 一人静 after the legendary dancer 静御前, evoking her dancing alone in the Noh play 『二人静』.