# Rambutan
**Rambutan** (*Nephelium lappaceum* L.) is a tropical tree of the soapberry family, [Sapindaceae](https://www.edgepedia.org/sapindaceae), grown for its oval red or yellow fruit covered in soft, hair-like spines, from which the name derives: *rambut* is Malay for hair.[1](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information) • [6](https://www.mybis.gov.my/art/787) The edible portion is a translucent white, sweet aril surrounding a single seed. The species was first published by Linnaeus in *Mantissa Plantarum* in 1767, and its native range extends from southern China to Malesia.[1](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information)
| Key fact | Detail |
|---|---|
| Scientific name | *Nephelium lappaceum* L., Sapindaceae, first published 1767; chromosome number 2n = 22[1](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information) • [2](https://www.fao.org/4/ad523e/ad523e04.htm) |
| Native range | Southern China to Malesia; origin untraceable because escapes from cultivation blur the original distribution[1](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information) • [9](https://plantuse.plantnet.org/en/Nephelium_lappaceum_%28PROSEA%29) |
| Fruit | Red or yellow, densely covered with wavy hairs or soft spines (spinterns) 1–1.5 cm long; translucent white aril with a sweet, creamy taste[6](https://www.mybis.gov.my/art/787) • [7](https://postharvest.ucdavis.edu/ar/produce-facts-sheets/rambutan) |
| Sex forms | Trioecious: male trees, hermaphroditic trees functioning as female, and hermaphroditic trees producing mixed flowers[8](https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.15491) |
| Production | Southeast Asia averaged 1.4 million metric tons per year in 2015–2017; Indonesia led with 692.0 thousand metric tons (49.9%)[8](https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.15491) |
| Conservation | IUCN Red List: Least Concern; easy to cultivate and not threatened[1](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information) • [6](https://www.mybis.gov.my/art/787) |
| Local names | Thailand: Ngo; Vietnam: Chom Chom; Philippines: Rambutan, Usan[2](https://www.fao.org/4/ad523e/ad523e04.htm) |
## Tree and fruit
Rambutan is an evergreen bushy tree that can reach 60 feet (about 18 m) with a dense, low, spreading, rounded crown; Vietnamese accounts describe cultivated trees of 4 to 7 m.[6](https://www.mybis.gov.my/art/787) • [2](https://www.fao.org/4/ad523e/ad523e04.htm) The leaves are 6–16 cm long with elliptic leaflets arranged in two or three pairs, and the small greenish-white flowers occur in long thyrsoid spikes.[6](https://www.mybis.gov.my/art/787)
The fruit is borne in clusters, and each fruit has a single seed surrounded by an aril, the edible flesh, covered by a leathery pericarp with soft spines or spinterns 1–1.5 cm long.[7](https://postharvest.ucdavis.edu/ar/produce-facts-sheets/rambutan) Fruits are commonly red, sometimes yellow, and the flesh is translucent white with a sweet yet creamy taste.[6](https://www.mybis.gov.my/art/787) Among its close relatives lychee and longan, rambutan is the largest, about the size of a golf ball, and the hairy spines distinguish it from the bumpy-skinned lychee and the smooth, tan-skinned longan.[10](https://foodstruct.com/articles/lychee-vs-rambutan-vs-longan)
**Sex expression.** Rambutan is trioecious, a pattern that separates it from lychee and longan: male trees produce only staminate flowers, hermaphroditic trees may function as female, and the most common type in cultivar selections produces both hermaphrodite and female or male flowers.[8](https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.15491) Vietnamese descriptions recognize staminate trees bearing only male flowers and hermaphrodite trees bearing two flower forms, one functioning as female and one as male.[2](https://www.fao.org/4/ad523e/ad523e04.htm)
## Origin and distribution
The origin of rambutan is uncertain; escapes from cultivation blur the original distribution.[2](https://www.fao.org/4/ad523e/ad523e04.htm) • [9](https://plantuse.plantnet.org/en/Nephelium_lappaceum_%28PROSEA%29) The species ranges from southern China (Yunnan and Hainan) through the Indo-Chinese region, Malaysia, Indonesia (Sumatra, Java, Kalimantan, Sulawesi) to the Philippines, and it is cultivated throughout the humid tropics of Asia from Sri Lanka to [New Guinea](https://www.edgepedia.org/new-guinea), with small plantings in the humid tropics of America, Africa, and Australia.[9](https://plantuse.plantnet.org/en/Nephelium_lappaceum_%28PROSEA%29) • [2](https://www.fao.org/4/ad523e/ad523e04.htm) FAO describes the species as indigenous to the [Malay Archipelago](https://www.edgepedia.org/malay-archipelago) and widely cultivated in Thailand, South Vietnam, Indonesia, the Philippines, India, and Sri Lanka.[3](https://www.fao.org/family-farming/detail/en/c/1618279/) In Vietnam it is grown mainly in the hot, humid [Mekong Delta](https://www.edgepedia.org/mekong-delta), with production concentrated in Dong Nai, Binh Duong, Baria Vungtau, Tien Giang, Ben Tre, Vinh Long, Tra Vinh, and Can Tho.[2](https://www.fao.org/4/ad523e/ad523e04.htm)
## Production
Between 2015 and 2017, average rambutan production in Southeast Asia was 1.4 million metric tons per year. Indonesia was the largest producer at 692.0 thousand metric tons (49.9% of the total), followed by Thailand at 344.8 thousand metric tons (24.9%), Vietnam at 261.4 thousand metric tons (18.8%), Malaysia at 62.7 thousand metric tons (4.5%), and the Philippines at 7.70 thousand metric tons (0.6%).[8](https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.15491) In Malaysia, rambutan ranks among the top three fruits in demand after durian and mangosteen, and *N. lappaceum* is the species with the highest crop production in the family Sapindaceae.[6](https://www.mybis.gov.my/art/787)
## Composition and uses
The pulp is the main food. Reported composition of fresh pulp includes about 15.5–18.99 g of carbohydrates per 100 g; the peel contains 22.73 g carbohydrates and 71.05 g moisture per 100 g.[4](https://pmc.ncbi.nlm.nih.gov/articles/PMC10345721/) Compared with lychee and longan, rambutan has the highest carbohydrate content and the highest glycemic index of the three.[10](https://foodstruct.com/articles/lychee-vs-rambutan-vs-longan)
**Seed and peel.** The seed is a waste product of fruit processing, but baked seeds are eaten in some Asian countries, and crushed seed accounts for 3.9–10.1% of the whole fruit weight depending on cultivar and ripeness.[4](https://pmc.ncbi.nlm.nih.gov/articles/PMC10345721/) Seed lipids range from 18% to 39%, with arachidic, oleic, stearic, and palmitic acids as the primary fatty acids, and rambutan seed fat has been examined as a partial substitute for cocoa butter in chocolate.[4](https://pmc.ncbi.nlm.nih.gov/articles/PMC10345721/) The PROSEA record notes that the kernel yields rambutan tallow, a solid fat similar to cacao butter that is edible and also used for soaps and candles.[9](https://plantuse.plantnet.org/en/Nephelium_lappaceum_%28PROSEA%29) The peel is rich in antioxidants and has drawn interest from the food, cosmetic, and pharmaceutical industries; peel extracts show antioxidant, antimicrobial, antidiabetic, antiviral, anti-inflammatory, and anti-proliferative effects in various in vitro and in vivo tests, though the therapeutic mechanisms and industrial processes remain to be developed.[5](https://www.sciencedirect.com/science/article/pii/S0924224418306642) The fruit also contains antinutritional compounds, including saponins (1.49 mg per 100 g), tannin (0.13 mg), phytates (0.14 mg), and oxalates (0.12 mg).[4](https://pmc.ncbi.nlm.nih.gov/articles/PMC10345721/)
## Cultivation and postharvest
Rambutan is strictly tropical, cropping only in warm, wet lowland areas, whereas its relatives lychee and longan also grow in the warm subtropics or above 500 m in the tropics.[11](https://coin.fao.org/coin-static/cms/media/9/13171770028780/2002_16_high.pdf) It can be propagated by seed, grafting, and marcotting.[12](https://www.nparks.gov.sg/florafaunaweb/flora/3/0/3042) In the Philippines, FAO promotes rambutan planting as a forest enrichment practice: trees planted in logged-over forest improve density and species composition, stabilize slopes against erosion after heavy rainfall, and provide additional income from a high-value fruit.[3](https://www.fao.org/family-farming/detail/en/c/1618279/)
Rambutans are picked ripe and do not benefit from ethylene treatment or ethylene scrubbing during postharvest handling.[7](https://postharvest.ucdavis.edu/ar/produce-facts-sheets/rambutan) Stem-end rot caused by the fungus *[Botryodiplodia theobromae](https://www.edgepedia.org/lasiodiplodia-theobromae)* affects the fruit in some production areas; control relies on preharvest disease management, careful handling to minimize physical damage, sanitation, and good temperature and humidity management.[7](https://postharvest.ucdavis.edu/ar/produce-facts-sheets/rambutan)
## References
1. [Nephelium lappaceum L., Plants of the World Online, Royal Botanic Gardens, Kew](https://powo.science.kew.org/taxon/urn%3Alsid%3Aipni.org%3Anames%3A783833-1/general-information)
2. [Rambutan, in Fruits of Vietnam, FAO](https://www.fao.org/4/ad523e/ad523e04.htm)
3. [Enhancing climate resilience through cultivation of rambutan for forest enrichment, FAO](https://www.fao.org/family-farming/detail/en/c/1618279/)
4. [Afzaal et al. (2023). Nutritional, pharmaceutical, and functional aspects of rambutan in industrial perspective: An updated review. Food Science & Nutrition](https://pmc.ncbi.nlm.nih.gov/articles/PMC10345721/)
5. [Hernández-Hernández et al. (2019). Rambutan (Nephelium lappaceum L.): Nutritional and functional properties. Trends in Food Science & Technology 85: 201–210](https://www.sciencedirect.com/science/article/pii/S0924224418306642)
6. [Nephelium lappaceum L., Malaysia Biodiversity Information System (MyBIS)](https://www.mybis.gov.my/art/787)
7. [Rambutan, Postharvest Research and Extension Center, UC Davis](https://postharvest.ucdavis.edu/ar/produce-facts-sheets/rambutan)
8. [Zhang et al. (2021). Rambutan genome revealed gene networks for spine formation and aril development. The Plant Journal](https://onlinelibrary.wiley.com/doi/abs/10.1111/tpj.15491)
9. [Nephelium lappaceum (PROSEA), Pl@ntUse](https://plantuse.plantnet.org/en/Nephelium_lappaceum_%28PROSEA%29)
10. [Lychee vs. Rambutan vs. Longan — Nutrition and Health Comparison, FoodStruct](https://foodstruct.com/articles/lychee-vs-rambutan-vs-longan)
11. [Lychee, longan, rambutan and pulasan, FAO](https://coin.fao.org/coin-static/cms/media/9/13171770028780/2002_16_high.pdf)
12. [Nephelium lappaceum var. lappaceum, NParks Flora & Fauna Web, Singapore](https://www.nparks.gov.sg/florafaunaweb/flora/3/0/3042)
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*Topic: Encyclopedia › Life and health › Plants and algae › Seed plants › Other flowering plants › Rosids › Malvales and Sapindales*
*Initially written Sep 17, 2026 · Reviewed: Sep 30, 2026; Oct 21, 2026 · Edited: Oct 15, 2026; Oct 21, 2026 · Last review: Oct 21, 2026*
*Copyright 2026 EdgeChat AI, a subsidiary of Biostate AI.*
License: Edgepedia Community License 1.0, https://www.edgepedia.org/edgepedia/license