What potato has the most starch?

Online Answer
RussetsRussets, Idahos, and sweet potatoes (yes, this includes what we think of as yams) are the best examples of high-starch potatoes—and these species are definitely ones you're familiar with.
Related Questions 📌
Russets are oblong in shape. These thick-skinned potatoes fall apart while cooking, and whip up fluffy and light. This makes them the ideal choice for mashing. Because they have a light, mealy texture, high-starch potatoes are the best baked potato.
Russets are oblong in shape. These thick-skinned potatoes fall apart while cooking, and whip up fluffy and light. ... Because they have a light, mealy texture, high-starch potatoes are the best baked potato.