A variety type of sweetpotato, Ipomoea batatas, that was grown in such a manner to maximize the tonnage of storage roots produced. These types of sweetpotato can accumulate from 28% to 40% dry matter in the root which is mostly carbohydrate. By combining high levels of carbohydrate (mostly starch and some sugars) with high tonnage of roots per acre, this type of sweetpotato produces some of the highest levels of ethanol per acre found in any temperate crop. This type of sweetpotato with its uniquely high dry matter, high starch content, and mealy texture can also be used to produce sweetpotato chips and fries that have significantly less oil than commercially available low dry matter sweetpotato varieties and have an excellent, distinctive, texture and flavor.