Bananas are a tropical fruit which grows on trees. They are green when unripe, turning a shade of yellow when ripe, and brown when overripe. They make for an inexpensive, portable snack and can be used in many recipes.
Banana peels are renown in slap-stic comedy and cartoons as being very slippery and are featured as a gag to make people slip.
Bananas are commonly believed to be high in potassium.