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
Catherine Ceniza Choy Catherine Ceniza Choy Catherine Ceniza Choy is a Professor of Ethnic Studies at the University of California, Berkeley. Choy chairs the department of Ethnic Studies at UC Berkeley. Prior to working at UC Berkeley, she taught at the University of Minnesota in American Studies. Choy received her Bachelor of Arts in History from Pomona College in 1991, where she graduated cum laude. Choy proceeded to finish her Master of Arts from UCLA in 1993, and then a Ph.D. in History from UCLA in 1998. In 2003, Choy published a book entitled "Empire of Care: Nursing and Migration in Filipino American