It sounds unsettling at first, but rape (RAH-peh) bianche (bee-AHN-keh) are simply white turnips. A curated section at our local supermarket displays carefully packaged vegetables that include pertinent info (origin, seasonality, nutritional value, etc) and storage tips. They cost more but you can tell that the produce is of top quality.
Inspired by Kat’s kabu post and soup recipe using turnips, I made it twice because the spiciness from the addition of kimchi is so perfect for this cold weather. Below is an adaptation subbing pumpkin for potato. For the kimchi, I made some using the turnip greens (no waste!).