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Science Fact #077

Bananas are berries, but strawberries aren't

Botanically, a banana is a true berry, but a strawberry isn't.

September 24, 2026 · 1 min read · 3 sources

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At the grocery store, it’s obvious: strawberries, raspberries and blackberries go with the berries, and bananas go somewhere else entirely. Botany sees it exactly the other way around. To a botanist, a banana is a true berry and a strawberry isn’t.

What a berry really is

In botany, “berry” isn’t a vibe, it’s a technical term with a clear definition. A berry is a fleshy fruit that develops from a single ovary of a single flower. The fruit wall stays fleshy when ripe and doesn’t split open on its own. The seeds sit inside the flesh.

That’s exactly what a banana does. It grows from one ovary and has a fleshy fruit wall, so it’s a berry. The fact that we don’t eat its thick peel doesn’t change a thing.

Why the strawberry fails the test

In a strawberry, the red flesh doesn’t come from the ovary at all. It’s the greatly enlarged receptacle, the part of the flower that holds everything else. The actual fruits are the tiny specks on the outside that almost everyone calls seeds. Each one is a small fruit called an achene. That makes the strawberry an accessory fruit, not a berry.

Raspberries and blackberries don’t make the cut either. They’re aggregate fruits, made of lots of tiny drupelets stuck together.

Berries nobody expects

Meanwhile, the list of true berries is full of surprises. Botanically, it includes:

  • Tomatoes, peppers and eggplants
  • Grapes
  • Citrus fruits like oranges and lemons
  • Avocados

Pumpkins, cucumbers and watermelons count as berries too. So a giant pumpkin is one seriously heavy berry.

Grocery store names come from the kitchen, not the biology textbook. Still, the banana deserves a spot in the berry aisle at least once.

The evidence

  1. 1Wikipedia: Berry (botany)
  2. 2McGill Office for Science and Society: Bananas are Berries. Raspberries are Not.
  3. 3Britannica: Accessory fruit

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5

🎃 The golden pumpkin! Here is your secret Halloween fact:

The first jack-o’-lanterns were turnips. In Ireland and other Celtic regions in the 19th and early 20th centuries, people carved faces into turnips, sometimes potatoes or beets, and put a candle inside. It was meant to keep away the restless spirit “Stingy Jack”, who was barred from both heaven and hell. The National Museum of Ireland in County Mayo still keeps a plaster cast of a carved turnip from Donegal with “a pinched angry face”.

Source: Smithsonian Magazine