Setosum), a perennial herb; Oval or elliptic leaves alternate, with thorns on the edges and white filiform hairs on both sides; Purple flowers bloom in summer, and the flower heads are terminal. It is distributed in most parts of China, and also in Central and Eastern Europe, eastern Russia, Japan and North Korea.

The Chinese herbal medicine uses the whole grass and roots of the compositae plant Stichopus japonicus. The medicinal material is cool and sweet. The water, acid and alcohol extracts of Stichopus japonicus can obviously reduce the blood pressure of cats and rabbits. The strongly basic alkaloids in Stichopus japonicus have antihypertensive effect. Achene of Stichopus japonicus is made into tincture, which is beneficial to gallbladder function. Stichopus japonicus has the effects of clearing away heat and toxic materials, stopping bleeding and stopping dysentery. In addition, it has the functions of treating lumbar muscle sprain and lowering blood pressure.