Hello, We harvested our last Mexican mini cucumbers yesterday and then made this discovery. The cucumber was growing in a large planting bag. When we turned the soil, these tubers came to light. Last year, this bag contained orange sweet potatoes, but then I added new soil and compost on top. It’s possible that some winter turnip seeds mixed in with leftover potting soil ended up in there—seeds that never germinated and that I had assumed were dead. Could these be those turnips? The bed was overgrown with mini cucumbers; I didn’t see any other greens besides cucumbers in it this year. Our identification app says they’re Jerusalem artichokes—we have those in the garden, too, but they’ve never formed tubers. My question for you experts: Do you have any idea what kind of tubers these are? They were buried pretty deep in the soil and had fairly long, white roots.