"Starchy plants" refers to plants that contain a lot of carbohydrates, specifically starch. They are often used as a food source, such as potatoes, rice, or corn, because starch provides energy to our bodies. Full definition
However, I do agree that people are not consuming enough fruits and vegetables, but to say that people are abandoning starchy plant foods is totally inaccurate. (healyeatsreal.com)
As a rule, gentle cooking of starchy plants leads to a lower glycemic index and high cooking temperatures lead to a higher glycemic index. (perfecthealthdiet.com)
One can probably eat well over 50 % of calories from starchy plant organs as long as the animal foods you eat are of high quality and micronutrient content. (perfecthealthdiet.com)