Do All Fruits Come From Flowers?
All fruits come from flowers, but not all flowers become fruits. Fruits are typically derived from the ovaries of a flower and contain seeds. This means all parts of a plant that flower (including most culinary nuts and berries) are “fruits” and all non-flowering parts of plants are “vegetables”.
How we classify a food often depends on if we are talking botanically, culinarily, and sometimes politically.
A video discussing “what is fruit”.
What Are Fruits?
Botanically speaking a fruit is a part of a flowering plant that derives from specific tissue of a flower, typically from one or more ovaries, but sometimes from accessory tissue (for instance strawberries are an accessory fruit).
In common terms, fruit is the fleshy seeded part of a plant that is sweet or sour and edible in it’s raw state.
Many of the things we think of as vegetables in common terms, like bean pods or tomatoes, are actually botanically fruits.
The bottom line, botanically, if it comes from a flower it’s a fruit, if it’s another edible part of the plant, it’s a vegetable.
In culinary or common terms, some things we consider vegetables (like the tomato) come from flowers while some things we consider fruits (like rhubarb) are technically vegetables.