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
Catherine Ceniza Choy the Edith Kreeger Wolf Distinguished Visiting Professor from Northwestern University. Catherine Ceniza Choy Catherine Ceniza Choy is a Professor of Ethnic Studies at the University of California, Berkeley. Choy chairs the department of Ethnic Studies at UC Berkeley. Prior to working at UC Berkeley, she taught at the University of Minnesota in American Studies. Choy received her Bachelor of Arts in History from Pomona College in 1991, where she graduated cum laude. Choy proceeded to finish her Master of Arts from UCLA in 1993, and then a Ph.D. in History from UCLA in 1998. In 2003, Choy published a book