Excerpted from Benksy:  Chinese Herbal Medcine Materia Medica

• Treats summerheat patterns:  for fever, irritability, excessive sweating, scanty urine, and especially diarrhea due to summerheat.*
• Raises and clears the yang of the Spleen:  for diarrhea due to Spleen deficiency, especially in the aftermath of summerheat.*
• Stops bleeding:  primarily for bleeding in the lower burner due to heat or stagnation, but also for vomiting blood.  Generally used as an adjunctive herb.*