Ixeridium dentatum, the toothed ixeridium,[1] is a species of flowering plant in the family Asteraceae, native to East Asia (China, Japan, Korea, and Russian Far east).

[2] It is a perennial plant whose leaves and stems and produce a white juice with a bitter taste.

[3] It's commonly found on the sides of roads, and in the wilderness, throughout Japan, Korea, and parts of China.

[4] Used as a folk remedy in Japan where it's said to relieve indigestion and reduce inflammation.

The plant is harvested during its flowering period, and then washed and dried before consuming.