@liuzhou This variability of nomenclature reminds me of something that drove me crazy in Singapore - there was a vegetable that I loved that was served everywhere, called "baby gai lan" - but it didn't look anything like any type of gai lan I've ever seen. And doing any kind of search for it brings up nothing even close - yet every place we went to, from hole in the wall dive to hawker center to restaurant all called it the same name, and when it was served, it was always the same thing! Maddening!
ETA: this is a photo of the elusive "baby kailan"...
ETA (again).. another photo of the baby kailan, in a different place: