Averrhoa bilimbi
| Averrhoa bilimbi | |
|---|---|
 | |
| Scientific name | Averrhoa bilimbi |
| Common names | Bilimbi; cucumber tree; tree sorrel |
| Genus | Averrhoa |
| Family | Oxalidaceae |
| Order | Oxalidales |
| Fruit type | Berry |
| Growth form | Evergreen shrub or small tree, often cauliflorous |
| Native range | Maluku and Sulawesi in the accepted native-range record; widely introduced in the tropics |
| Mature size | Often 2–3 m in cultivation; sometimes up to about 15 m |
| Years to fruit | N/A — no dependable species-specific first-fruiting value located |
Averrhoa bilimbi L.
Description
Averrhoa bilimbi L. is bilimbi, a sour-fruited relative of carambola in the Oxalidaceae. Its fruit is commonly borne on older branches and the trunk, giving the tree a cauliflorous appearance. Bilimbi is distinct from Averrhoa carambola even though the two species share a genus and some regional naming. [1][2][3]
Distribution and habitat
The accepted native-range record places bilimbi in Maluku and Sulawesi, with introductions throughout tropical regions. The species account describes lowland and riverine conditions in humid climates. That ecology supports dependable moisture and warmth but does not establish tolerance of waterlogged roots. [1][3][4]
Cultivation
Soil and water
Use fertile, organic, well-drained soil that stays evenly moist. Raised planting or a sharply draining container medium is safer than planting into stagnant wet ground. The checked sources do not establish a species-specific pH target. [3]
Sun and humidity
Full sun is reported for productive growth, with protection from drying exposure while young. Maintain airflow in a dense canopy and keep water available during hot weather. Humid tropical air suits the documented ecology, but no numeric humidity requirement was found. [3]
Seasonal changes
The available sources do not establish one flowering or harvest calendar for all regions. Bilimbi can flower and fruit on older wood in warm climates, while drought, cool weather, or root stress can reduce growth and fruit set. Adjust irrigation to local rainfall and protect from frost. [3][4]
Propagation
Seed, marcotting, and budding are reported methods. The checked evidence does not establish a single germination time or comparative success rate, so fresh seed and vegetative methods should be treated as context-dependent rather than guaranteed protocols. [3]
Flowering, fruiting, and harvest
The long, ribbed fruits are harvested green to yellow-green for their sharp acidity and are used in regional cooking, pickling, relishes, and souring preparations. A universal maturity index, storage life, and first-fruiting age were not verified. [3][4]
Fruit and uses
The documented use is the strongly sour fruit in prepared foods and condiments. Medicinal or concentrated-preparation claims are omitted, and carambola-specific toxicity findings are not transferred to bilimbi without bilimbi-specific evidence. [3][4]
Photos
References
[1] Plants of the World Online: Averrhoa bilimbi L.. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:371869-1 [2] GBIF species match: Averrhoa bilimbi. https://api.gbif.org/v1/species/match?name=Averrhoa%20bilimbi [3] Useful Tropical Plants: Averrhoa bilimbi. https://tropical.theferns.info/viewtropical.php?id=Averrhoa+bilimbi [4] FAO: Under-utilized Tropical Fruits of Thailand. https://www.fao.org/3/a-ab777e.pdf
Image credits
- Averrhoa bilimbi fruit by Sugeesh.jpg — Bilimbi fruit (Averrhoa bilimbi); the Commons file description identifies the species and fruit. Creator: Sugeesh; license: CC BY-SA 3.0. Commons file page.
- Averrhoa bilimbi 15zz.jpg — Averrhoa bilimbi at Wilson Botanical Garden, Costa Rica; the Commons file description identifies the species. Creator: Photo by David J. Stang; license: CC BY-SA 4.0. Commons file page.
- Averrhoa bilimbi Linn.jpg — Averrhoa bilimbi; the Commons file categories identify fruit and flowers. Creator: Silviculture South; license: CC BY-SA 4.0. Commons file page.
