At the market, Lao Cai, Vietnam

Most of the markets are run by bike, with people coming in from the countryside with their fresh produce.  Bike Carts also sell much of the fruit and vegetables.

The greens in her basket are Morning Glory.   Americans call it water spinach, and here it is considered and invasive species.  In Vietnam its a staple, because it grows like a weed year round, and is pretty good for you.