Origin: North America. Indian tea, also known as “yerba mansa” or “marsh tea,” contains medicinal properties that include its ability to relieve digestive problems, such as heartburn and indigestion. It is also attributed diuretic and expectorant properties, which can help eliminate fluids and mucus from the body, yellow eyesight, bad urine, antispasmodic, for neurasthenics with gastric disorders, bile and liver problems, bad breath, and stimulates bile secretion.