Shanghai Bok Choy is often confused with Baby Bok Choy. It looks similar to Baby Bok Choy in size and leave colour, though the leaves are a bit lighter and the stalks are a pale green. It is just a little less sweet than Baby Bok Choy.
It is often harvested young; if let grow, it can grow up to 12 inches tall (30 cm.)
It’s also sometimes confused with Bok Choy Sum, but Shanghai Bok Choy doesn’t have yellow flowers, as does Bok Choy Sum.