Figure 24: Kiwicha (Amaranthus caudatus). Until 400 years ago, this species was a major Andean crop, but it disappeared along with the Incas. After reading about our work, Luis Sumar Kalinowski, a professor in Cuzco, set out to rediscover it. Seemingly there was none anywhere. But finally, he located a few handfuls of seeds that some family had religiously grown for four centuries. This field results from their efforts and his. Today, kiwicha is cultivated again; the Incas would feel right at home here.