Yacoon is a perennial plant of the family Asteraceae native to the Andean regions of South America. The plant looks generally similar to a sunflower and typically grows 4 to 5 feet tall. Flowers form between five and nine months after planting. They look like small sunflowers.
The edible part of the plant is its cluster of storage roots. The cluster may include more than a dozen large roots, especially if the plant is grown as a perennial. The roots are crisp, very juicy, and mildly sweet and are used more like a fruit than a vegetable. The flavor of yacon is often described as a mixture of things like apple, pear, and celery