Quinoa is a flowering plant in the amaranth family. It is a herbaceous annual plant grown as a crop primarily for its edible seeds; the seeds are rich in protein, dietary fiber, B vitamins, and dietary minerals in amounts greater than in many grains. Quinoa is not a grass, but rather a pseudocereal botanically related to spinach and amaranth, and originated in the Andean region of northwestern South America.
Quinoa comes in many colors and can be purchased at most local grocers. Amazon sells it as well.