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,
Fat choy Fat choy Fat choy (; "Nostoc flagelliforme") is a terrestrial cyanobacterium (a type of photosynthetic bacteria) that is used as a vegetable in Chinese cuisine. When dried, the product has the appearance of black hair. For that reason, its name in Chinese means "hair vegetable." When soaked, fat choy has a soft texture which is like very fine vermicelli. Fat choy grows on the ground in the Gobi Desert and the Qinghai Plateau. Over-harvesting on the Mongolian steppes has furthered erosion and desertification in those areas. The Chinese government has limited its harvesting, which has caused its price to increase.