Underground thick tuber is edible, with peculiar shape, crisp and fiber-free, and edible. It is best eaten as pickles or pickles. Guizhou uses whole herbs as medicine to treat pneumonia, wind-heat cold and so on.
Tuber or whole grass: sweet and flat. Dispelling wind and clearing heat, promoting diuresis and eliminating dampness, promoting blood circulation and removing blood stasis. Can be used for treating jaundice, urinary stranguria, wind-heat common cold, tuberculosis, cough due to fatigue, malnutrition, sore, toxic swelling and pain, and snake bite.