Other names:
No-heading Chinese cabbage, Bady Pak Choy, Shanghai Pak Choy, Ching-Geeng cabbage, Ching-Chiang Choy, Ching-Kang Choy, Bok Choy, Bak Choy, Bok Choi,
Bac Choi, Pac Choi, green baby Pak Choy, Shanghai Choy Sum, Nai Pe Tsai, You Cai, Yu Tsai,
Pai Tsai.
*pak=bok, boc, pac, bai, bac, bak, pe, .......
*choy=choi, tsai, tsoi, cai, .......