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,
Choy Li Fut district and called it Siu Buk Hung Sing Choy Li Fut. Eventually it was shortened to Buk Sing Choy Li Fut. Tam Sam's students referred to themselves as the Buk Sing branch of Choy Li Fut. A Northern Shaolin master named Ku Yu Jeung (aka Gu Ruzhang) befriended and joined Tam Sam and thus added more techniques to the Buk Sing Choy Li Fut curriculum. What makes Buk Sing Choy Li Fut a unique branch is that it concentrates on the application of Choy Li Fut techniques rather than the practice of forms. Because the emphasis is on combat applications,