Yu Choy Sum (Brassica rapa var parachinensis, Brassica rapa var purpurea)
 
Also known as:
Cantonese pak choy, Chinese flowering cabbage, Chinese soup green, edible rape, flowering Chinese cabbage, flowering pak choy, mock pak choy, yellow flower choy sum

Early Green #494		Jung Green #496		Kosaitai #156		Late Green #495

Asian names for this vegetable...

China:  hon tsai tai, hong tsoi sum, hong cai tai, yu choy, zi cai tai, cai tai, cai tsai, cai xin, choy sum, pak tsoi sum, pei choy sum, tsai hsin, tsoi sum, yintsai sum, you cai, yu choy, yu choy sum, yui tsai

Japan:  beninabana, kosaitai, saishin

Korea:  yuchaeip

Malaysia:  sawi bunga, sawi manis

Thailand:  pakaukeo, pakauyai

Vietnam:  cai ngot, zaub ceg ntev