Yucca (also known as manioc or cassava), is a white, starchy tropical vegetable. It is a great source of vitamin C and its primary uses are in pain relieving combinations for arthritic and joint pain, and sediment caused by inflammation such as gout, rheumatism, and cystitis. It is also used to establish a flora balance for asthmatic relief. Yucca root may have a laxative effect.