Pennisetum is a Chinese herbal medicine, also known as "Acer truncatum".

The efficacy and function of the grass have the functions of cooling blood and stopping bleeding, clearing away heat and toxic materials, promoting blood circulation and regulating menstruation. Indications: hematemesis, irregular menstruation, dysmenorrhea, hemoptysis, traumatic injury, rheumatic arthralgia, lumbago and leg pain, etc.