Now for an easy one. I'm exhausted!
Spinacia oleracea
I never associated spinach with Chinese cuisine until I got there. Now I learn that China grows 85% of the world's supply.
One thing I like about China is that all the vegetables here are only available seasonally; out-of-season supplies flown halfway across the world are very unusual. And spinach has just started to reappear in the last week.
In Chinese, 菠菜 (Mand: bō cài; Cant: bo1 coi3).