Potatoes on sale at a downtown market in Rome. 

Potatoes on sale at a downtown market in Rome. 

Potatoes on sale at a downtown market in Rome. 

Potatoes on sale at a downtown market in Rome. 

Potatoes on sale at a downtown market in Rome. 

Potatoes on sale at a downtown market in Rome. 

A sweet potato displayed at a downtown market in Rome. 

A sweet potato displayed at a downtown market in Rome. 

Potatoes on display at a downtown market in Rome. 

Potato chips. 

Fried potatoes at a fast food restaurant. 

Fried potatoes at a fast food restaurant. 

Fried potatoes at a fast food restaurant. 

A young vendor frying potatoes for sale at the Metundu Market in Lilongwe. 

A woman selling potatoes at the Metundu Market in Lilongwe. 

Fresh potatoes and onions on sale at a stand in the Piazza Vittorio market. Country of origin is clearly marked on the signs indicating prices. 

Label listing ingredients contained in the contents of a bag of potato chips. 

Potato and onion vendors at a market in Kabul. 

HUNGARY 2008. Fresh green onions on sale at a local open air market in Budapest. 

Rice varieties on sale at a market.