Edible roots include cassava, sweet potato, beet, carrot, rutabaga, turnip, parsnip, radish, yam and horseradish. Hosts include broccoli, cabbage, cauliflower, turnip, kale, rutabaga, Brussels sprout, and mustard. Turnip, rutabaga, cabbage, Brussels sprouts, and mustard are related to rapeseed. Popular early garden vegetables included hardy varieties of cabbage, turnip, rutabaga, and potato. It may also contain parsley, thyme, celery leaves, rutabaga (swede), parsley root, and onions. In The Netherlands, rutabaga is traditionally served boiled and mashed. Cliff plans to popularize his invention "beetabaga", a vegetable hybrid of rutabaga and beetroot. Instead of fish, combinations of potato and pork or rutabaga and pork are also used. Finns use rutabaga in most dishes that call for a root vegetable. One American POW recalled rutabaga soup "made from peelings". Florida Broadleaf' is a resistant mustard plant, and 'American Purple Top' is a resistant rutabaga. For the mixed type (PAV/AVI), the difference is not significant for rutabaga. These compounds also cause the bitter taste of rutabaga. Rutabaga arrived in Scotland by way of Sweden around 1781. There are contradictory accounts of how rutabaga arrived in England.