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
Chip Bok Chip Bok Arthur "Chip" Bok is an American editorial cartoonist for the "Akron (Ohio) Beacon Journal" and the "Tampa Bay Times". He has illustrated some of Dave Barry's books, and was a finalist for the Pulitzer Prize in 1997. Bh grade math class, where he was influenced by Don Martin's work in Mad Magazine. University of Dayton, where he was captain of the hockey team. Prior to working as an editorial cartoonist, Bok held several other jobs such as substitute teaching, concrete labor, wholesale drug sales, and freelance work. From 1981 to 1982 he was staff editorial cartoonist at the