Use "root crop" in a sentence

1. Cassava is a wonderful, yet little known tropical root crop

2. Cassava (Manihot esculenta), also known as manioc, tapioca, yuca, and mandioca, is a domesticated species of tuber, a root crop originally domesticated perhaps as long ago as 8,000–10,000 years ago, in southern Brazil and eastern Bolivia along the southwestern border of the Amazon basin.Cassava is today a primary calorie source in tropical regions around the world, and the sixth …