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
Wayson Choy Wayson Choy Wayson Choy, CM (崔維新 Pinyin: Cuī Wéixīn ; Jyutping: Ceoi1 Wai4-san1) (born April 20, 1939) is a Canadian writer. Choy was born in Vancouver in 1939. A Chinese Canadian, he spent his childhood in the city's Chinatown. Choy graduated from Gladstone Secondary School and went on to attend the University of British Columbia, where he studied creative writing. Choy moved to Toronto in 1962, and taught at Humber College from 1967 to 2004. He continues to teach at the Humber School for Writers. He was president of Cahoots Theatre Company of Toronto from 1999 to 2002. Choy is