Scientific name is Gentiana triflora var. japonica, Japanese name is Ezooyamarindou
Corolla length 3-4 cm. Height 10-40 cm.
It is an alpine species of Gentiana triflora that grows naturally on alpine grasslands and forest edges.
Several flowers are attached to the tip of the stem, and the flowers open during the daytime on a sunny day.
It is a flower that signals the end of summer, which can be seen around the Sugatami-pond from the end of summer to early autumn.