# Berry (botany)
In botany, a berry is a simple fleshy fruit produced from the ovary of a single flower, in which the entire fruit wall (the pericarp) is fleshy at maturity and the seeds are embedded in soft pulp with no hard inner pit[1](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/). Classic examples are the grape (*Vitis vinifera*) and the tomato (*Lycopersicon esculentum*)[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf). The term is anatomical, not culinary: bananas, eggplants, chili peppers, and avocados are berries, while strawberries and raspberries are not[3](https://open.lib.umn.edu/horticulture/chapter/8-1-fruit-morphology/) • [4](https://scienceinsights.org/what-is-a-berry-botany-nutrition-and-surprises/).
| Key fact | Detail |
|---|---|
| Definition | A simple fleshy fruit from a single flower with one ovary; the whole pericarp is fleshy and there is no stone[1](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/) |
| Pericarp layers | Exocarp (skin), mesocarp (fleshy middle), and endocarp (inner layer), which in a berry is thin or fleshy rather than stony[5](https://doi.org/10.1016/J.SCIENTA.2020.109390) • [6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit) |
| Typical examples | Grape, tomato, blueberry, banana, eggplant, chili pepper[3](https://open.lib.umn.edu/horticulture/chapter/8-1-fruit-morphology/) • [7](https://www.imperial.edu/faculty-and-staff/_docs-images/2026-Principles-of-Plant-Science-Exploring-the-Science-of-Plants-Final-5-2-2026.pdf) |
| Specialized forms | Hesperidium (citrus, leathery oily rind) and pepo (gourd family, hard rind)[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf) |
| Distinguishing contrast | A drupe has a hard, stony endocarp (the pit or pyrene) around usually one seed; a berry does not[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf) |
| Evolution | Berries and drupes evolved from capsules, the ancestral angiosperm fruit type; berries evolved independently at least 20 times in monocots[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit) |
| Dispersal | Ripe exocarps are frequently brightly colored to attract animal dispersers, and color changes can indicate seed maturity[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf) |
## Structure
The fruit wall of a true fruit derives exclusively from ovarian tissues and is always composed of three portions, the exocarp, mesocarp, and endocarp, though the details differ between and within fruit types[5](https://doi.org/10.1016/J.SCIENTA.2020.109390). In a berry, as in a drupe, the exocarp is thin and the mesocarp is fleshy; the difference lies in the endocarp, which in berries can be thin or fleshy rather than hardened into a stone[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit). A grape shows the arrangement plainly: peeling it removes the exocarp, the juicy flesh is the mesocarp, and a soft layer surrounds the seeds[1](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/).
**Development.** During fruit growth, extensive cell division and expansion occur mainly in the mesocarp layers, while the exocarp and endocarp generally remain one to two layers thick even at maturity[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit). The exocarp is covered by a cuticle made of cutin and waxes, whose organization varies considerably, as observed among wild tomato species[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit).
The tomato illustrates the internal changes of ripening. Most of its outer fruit wall is pericarp; in the young fruit the placenta fills the locules (the seed cavities), but as the fruit matures the placenta degrades into a gelatinous material through the action of cellulases, and on ripening the chloroplasts convert to chromoplasts, producing the red color[8](https://nickrentlab.siu.edu/PlantAnatomyWeb/LecturesDLN/Lecture24_Fruits.html). Cultivated tomatoes are typically bilocular or multilocular, with most varieties having four or five locules[9](https://labs.plb.ucdavis.edu/rost/tomato/Reproductive/anat.html).
## Specialized berries
Two variants of the basic berry type have their own names. The hesperidium, typical of citrus fruits (Rutaceae), has an exocarp forming a tough, oily rind, a pithy mesocarp, and endocarp cells enlarged into juice vesicles; oranges, lemons, and grapefruits fit this pattern[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf) • [1](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/). The pepo of the gourd family ([Cucurbitaceae](https://www.edgepedia.org/cucurbitaceae)), covering watermelons, cucumbers, and pumpkins, is regarded as a kind of berry with a thick rind, but it is strictly an accessory fruit because it develops from an inferior ovary and includes a small proportion of extra-carpellary tissue[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf). In a pepo the fleshy interior eaten is the mesocarp, beneath a rigid or leathery exocarp[3](https://open.lib.umn.edu/horticulture/chapter/8-1-fruit-morphology/).
## How berries differ from other fleshy fruits
The nearest relative in fruit classification is the drupe, the stone fruit of peaches, cherries, plums, and olives. In a drupe the endocarp develops into a thick, hard layer around a single (usually) seed, called a stone or pyrene; in a berry this layer stays soft[2](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf). A fruit with one seed and a hard inner layer is therefore a drupe, not a berry[1](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/).
Aggregate fruits fail the berry definition on a different ground: origin. Strawberries and raspberries form from multiple ovaries within one flower whose carpels do not fuse, so each is a cluster of small fruits (achenes in the strawberry, drupelets in the raspberry) rather than a single fruit from one ovary[3](https://open.lib.umn.edu/horticulture/chapter/8-1-fruit-morphology/) • [10](https://blogs.ubc.ca/biol343/fruit-types/). Pomes such as apples and pears are also distinct, since much of their flesh derives from tissue outside the ovary[10](https://blogs.ubc.ca/biol343/fruit-types/).
## Evolution
Berries and drupes are evolved from capsules, which are accepted as the ancestral fruit type for the angiosperms[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit). The berry is characteristic of various orders and families and is probably the result of convergent evolution: independent evolution of berries seems to have occurred at least 20 times in monocots alone, suggesting that separate lineages with berry fruits may follow different developmental pathways[6](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit). Fruit type has long been treated as a useful character in classification and in understanding plant phylogeny[5](https://doi.org/10.1016/J.SCIENTA.2020.109390).
## Botanical and culinary usage
The botanical definition ignores size, flavor, and how a fruit is eaten[4](https://scienceinsights.org/what-is-a-berry-botany-nutrition-and-surprises/). In the kitchen, a berry is simply a small, fleshy, edible fruit, so strawberries and raspberries count as berries in recipes while bananas and eggplants do not[4](https://scienceinsights.org/what-is-a-berry-botany-nutrition-and-surprises/). Nutrition labeling often follows culinary and regulatory definitions instead, so products made from tomato or avocado may appear in vegetable categories while blueberry or cranberry products are labeled as fruit[11](https://www.randall-travel-award.missouri.edu/article/berry-definition-what-is-a-berry-botanist-culinary-guide). Both usages remain current; the botanical one is a statement about ovary and pericarp anatomy, the culinary one about how the fruit is used[4](https://scienceinsights.org/what-is-a-berry-botany-nutrition-and-surprises/).
## References
1. [What Classifies a Fruit as a Berry in Botany? ScienceInsights](https://scienceinsights.org/what-classifies-a-fruit-as-a-berry-in-botany/)
2. [Chapter 15, Seed and Fruit Structure, in Seed Conservation: Turning Science into Practice, Royal Botanic Gardens, Kew](https://www.rbgkew.org.uk/files/msbp/scitech/publications/sctsip_digital_book/pdfs/chapter_15.pdf)
3. [8.1 Fruit Morphology, The Science of Plants, University of Minnesota](https://open.lib.umn.edu/horticulture/chapter/8-1-fruit-morphology/)
4. [What Is a Berry? Botany, Nutrition, and Surprises, ScienceInsights](https://scienceinsights.org/what-is-a-berry-botany-nutrition-and-surprises/)
5. [Cerri, M., Reale, L. (2020). Anatomical traits of the principal fruits: An overview. Scientia Horticulturae](https://doi.org/10.1016/J.SCIENTA.2020.109390)
6. [Berry Fruit, an overview, ScienceDirect Topics](https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/berry-fruit)
7. [Principles of Plant Science: Exploring the Science of Plants, Imperial Valley College](https://www.imperial.edu/faculty-and-staff/_docs-images/2026-Principles-of-Plant-Science-Exploring-the-Science-of-Plants-Final-5-2-2026.pdf)
8. [Lecture 24, Fruits, Plant Anatomy, Southern Illinois University](https://nickrentlab.siu.edu/PlantAnatomyWeb/LecturesDLN/Lecture24_Fruits.html)
9. [Tomato Fruit Anatomy, University of California, Davis](https://labs.plb.ucdavis.edu/rost/tomato/Reproductive/anat.html)
10. [Fruit Types, Biology 343, Plants and People, University of British Columbia](https://blogs.ubc.ca/biol343/fruit-types/)
11. [Berry Definition: What is a Berry? Botanist and Culinary Guide, University of Missouri](https://www.randall-travel-award.missouri.edu/article/berry-definition-what-is-a-berry-botanist-culinary-guide)
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*Topic: Encyclopedia › Life and health › Plants and algae › Seed plants › Other flowering plants › Asterids › Apiaceae: carrot and parsley family*
*Initially written Sep 17, 2026 · Reviewed: Oct 21, 2026 · Edited: Oct 15, 2026; Oct 21, 2026 · Last review: Oct 21, 2026*
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