Emma I assure you that Winn Dixie and Publix both carry parsnips.
They are always in my fridge and go into every soup, stew, stock, you name it, recipe that calls for root vegetables. The bag is Blue, not many in it. sizes vary a lot. Much more flavorful than carrots when cooked into stews it adds a sweet rich earthy flavor.
Tastes kinda crappy raw and the texture is wrong for that. Just ask somebody in the produce section. Parsnips are among the "forgotten roots" and are delicious roasted as well.