Choy sum Choy sum Choy sum (also spelled choi sum or "Cai Xin" in modern Pinyin) is a leafy vegetable commonly used in Chinese cuisine. It is a member of the genus "Brassica" of the mustard family, Brassicaceae ("Brassica rapa" var. "parachinensis" or "Brassica chinensis" var. "parachinensis"). Choy sum is a transliteration of the Cantonese name (), which can be literally translated as "heart of the vegetable". It is also known as Chinese Flowering Cabbage. Choy sum is a green leafy vegetable similar to gai lan, and can be characterized by the distinct yellow flowers which it bears. Each flower has four
Wayson Choy Wayson Choy Wayson Choy, CM (崔維新 Pinyin: Cuī Wéixīn ; Jyutping: Ceoi1 Wai4-san1) (born April 20, 1939) is a Canadian writer. Choy was born in Vancouver in 1939. A Chinese Canadian, he spent his childhood in the city's Chinatown. Choy graduated from Gladstone Secondary School and went on to attend the University of British Columbia, where he studied creative writing. Choy moved to Toronto in 1962, and taught at Humber College from 1967 to 2004. He continues to teach at the Humber School for Writers. He was president of Cahoots Theatre Company of Toronto from 1999 to 2002. Choy is