Yam or ubi is one of the country’s “famine crops”. It is grown backyard and commercial farms. Distinguished from tugui known as the lesser yam, ubi or the greater yam has fleshy underground roots used as staple food in the provinces. Among rootcrops, it ranks fourth among the widely-cultivated.
Yam is perennial climbing herb with flesh color ranging from white to yellow, orange, red and deep purple. A side from being known a vegetable, it is famous as halo-halo ingredients, and a source of flour. Other food products such as dehydrated yam flakes and instant yam mixes can be derived from yam. Yam peelings or waste are fed to poultry and livestock.