Napa cabbage choy (from the Cantonese name, ), and celery cabbage. In the United Kingdom this vegetable is known as Chinese leaf, in New Zealand as wong bok or won bok, and in the Philippines as wombok or pechay baguio. The name wombok is also used in Australia. Another name used in English is petsai or pe-tsai. In Russia it's called pekinskaya kapusta (), literally "Peking cabbage". The first notation of Napa cabbage cultivation date from the 15th Century in the Yangtze River region in China. Then it spread to Korea and Japan. Beginning in the 19th Century with the Chinese diaspora,
Bok Tower Gardens only. To make an appointment, the Bok Tower librarian should be contacted. The Chao Research Center Archives was formed in 2008, after a generous donation made by the Ting Tsung and Wei Fong Chao Foundation. With this donation, space was made available on the second floor of the Singing Tower to accommodate a growing need for delicate archival documents. The Chao Research Center Archives stores the official archives of Bok Tower Gardens along with other significant collections. These significant collections include the Nellie Lee Bok Collection, American Foundation Collection, and Edward Bok Newspaper Scrapbook Collection. The Nellie Lee Bok Collection