Thalictrum kiusianum (Tsukushi karamatsu)

Tsukushi karamatsu is a cross between murasaki karamatsu, which is found in the area from the Tsushima Islands in Japan to Jeju Island in Korea, to and Yakushima karamatsu, which is found on Yakushima Island.  

This plant is a very small species of Japanese larch that produces delicate, pretty flowers.