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
Bok Tower Gardens includes her personal communications, photographs, manuscript writings, and family possessions. The American Foundation Collection includes newspaper scrapbooks, meeting minutes, publications, and other manuscript materials. The Edward Bok Newspaper Scrapbook Collection is made up of 42 bound scrapbooks filled with newspaper clippings about Bok's publications and charitable acts. Access to the collections in the Chao Research Center Archives is available by appointment only. To make an appointment the Bok Tower Librarian should be contacted. The Pinewood Estate Mansion holds furniture, ceramics and other objects that were kept in the house before Bok Tower purchased it in 1970. Other collections held at