Brassicaceae greens, Savoy, kohlrabi, and gai lan ("Brassica oleracea"), turnip, napa cabbage, bomdong, bok choy and rapini ("Brassica rapa"), rocket salad/arugula ("Eruca sativa"), garden cress ("Lepidium sativum"), watercress ("Nasturtium officinale") and radish ("Raphanus") and a few spices like horseradish ("Armoracia rusticana"), "Brassica", wasabi ("Eutrema japonicum"), white, Indian and black mustard ("Sinapis alba", "Brassica juncea" and "B. nigra" respectively). Vegetable oil is produced from the seeds of several species such as "Brassica napus" (rapeseed oil), perhaps providing the largest volume of vegetable oils of any species. Woad ("Isatis tinctoria") was used in the past to produce a blue textile dye (indigo), but
Rhie Won-bok Most of his other works are untranslated and available in Korean only. He received the Noonsol Award in 1993 for contributions to the development of the South Korean cartoon industry. From 1998 to 2000 he was president of the Korean Society of Cartoon and Animation Studies. He is professor of graphic design at Duksung Women's University in Seoul, South Korea. Rhie Won-bok Rhie Won-bok (born 4 October 1946) is a South Korean cartoonist and professor. Rhie was born in Daejeon, South Korea. He studied architecture in Seoul National University, after which he studied graphic design in Münster, Germany. His comics