Farina bòna or farina sec'a is a traditional product from Valle Onsernone in Switzerland.
Until the 19th Century, the village had much closer ties to Piedmont than to the rest of the Onsernone valley.
In 1995 the municipality was merged with the other, neighboring municipalities Crana and Russo to form a new and larger municipality Onsernone.
In 1995 the municipality was merged with the other, neighboring municipalities Comologno and Russo to form a new and larger municipality Onsernone.
The municipalities of Gresso, Mosogno, Vergeletto, Onsernone and Isorno are considering a merger some time in the future into a new municipality which will be known as Onsernone.