So, potato is a stem. Full stop. It’s a tuberous stem, to be precise. It’s a stem that got fat, went underground, and became dinner.
Roots are humble. Stems are overachievers. Potatoes are the overachievers that hid in the dirt and became a global obsession.
Next time you eat fries, remember: You’re munching on stem sticks. It’s weirder, more wonderful, and way more fascinating than a boring old root. Pass the ketchup—and the knowledge.