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Willughbeia coriacea - Wall.

Common Name Heaven fruit, Borneo rubber, Akar gerit-gerit besi
Family Apocynaceae
USDA hardiness 10-12
Known Hazards None known
Habitats Tropical, Sub-Tropical, Monsoonal. Terrestrial habitat (Primary Rainforest; Secondary Rainforest; Freshwater Swamp Forest)
Range Southeast Asia - Peninsula Thailand, Malaysia, Indonesia.
Edibility Rating    (2 of 5)
Other Uses    (3 of 5)
Weed Potential No
Medicinal Rating    (1 of 5)
Care (info)
Tender Moist Soil Wet Soil Semi-shade Full sun
Willughbeia coriacea Heaven fruit, Borneo rubber, Akar gerit-gerit besi


edibleplants.org
Willughbeia coriacea Heaven fruit, Borneo rubber, Akar gerit-gerit besi
Reuben C. J. Lim - Flickr

 

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Summary


Physical Characteristics

 icon of manicon of climber
Willughbeia coriacea is an evergreen Climber growing to 30 m (98ft) by 0.2 m (0ft 8in) at a fast rate.
See above for USDA hardiness. It is hardy to UK zone 10.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist or wet soil.

UK Hardiness Map US Hardiness Map

Synonyms

Ancylocladus coriaceus (Wall.) Kuntze Ancylocladus firmus (Blume) Kuntze Ancylocladus minutiflorus Pierre Ancylocladus nodosus Pierre Ancylocladus vriesianus Pierre Tabernaemontana macrocarpa Korth. ex Blume Willughbeia burbidgei Dyer Willughbeia firma Blume Willughbeia minutiflora (Pierre) K.Schum Willughbeia nodosa (Pierre) K.Schum Willughbeia vrieseana (Pierre) K.Schum

Plant Habitats

Edible Uses

Edible Parts: Fruit
Edible Uses:

Fruit[317 ].

References   More on Edible Uses

Medicinal Uses

Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.


The latex is used medicinally[317 ].

References   More on Medicinal Uses

The Bookshop: Edible Plant Books

Our Latest books on Perennial Plants For Food Forests and Permaculture Gardens in paperback or digital formats.

Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.
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Food Forest Plants for Hotter Conditions: 250+ Plants For Tropical Food Forests & Permaculture Gardens.

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PFAF have eight books available in paperback and digital formats. Browse the shop for more information.

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Other Uses

A latex obtained from the plant makes a good quality rubber[46 ].

Special Uses

Carbon Farming

References   More on Other Uses

Cultivation details

Industrial Crop: Hydrocarbon  Management: Standard  Regional Crop

Humid tropics. Before the introduction of Hevea brasiliensis as the main source of rubber W. coriacea was cultivated in plantations to produce a high quality rubber.

Carbon Farming

  • Industrial Crop: Hydrocarbon  Materials, chemicals and energy include bioplastics, rubber, biomass products gasoline, jet fuel, diesel, butane, propane, biogas. Plants are usually resprouting plants and saps.
  • Management: Standard  Plants grow to their standard height. Harvest fruit, seeds, or other products. Non-Destructive management systems.
  • Regional Crop  These crops have been domesticated and cultivated regionally but have not been adopted elsewhere and are typically not traded globally, Examples in this broad category include perennial cottons and many nuts and staple fruits.

References   Carbon Farming Information and Carbon Sequestration Information

Temperature Converter

Type a value in the Celsius field to convert the value to Fahrenheit:

Fahrenheit:

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The PFAF Bookshop

Plants For A Future have a number of books available in paperback and digital form. Book titles include Edible Plants, Edible Perennials, Edible Trees,Edible Shrubs, Woodland Gardening, and Temperate Food Forest Plants. Our new book is Food Forest Plants For Hotter Conditions (Tropical and Sub-Tropical).

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Plant Propagation

Seed

Other Names

If available other names are mentioned here

Akar garok, Akar gerit hitam, Akar getah gaharu, Akar getah menjawa, Akar getah gegerip jantan, Akar getah jela, Akar getah ujul, Akar kubal, Akar jitan, Akar jualoh, Buah surga, Karet akar grutuk, Kelang, Lumbu jawa, Puchong kapur,

Asia, Indochina, Indonesia, Malaysia, SE Asia, Singapore, Thailand,

Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

None Known

Conservation Status

IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed

Related Plants
Latin NameCommon NameHabitHeightHardinessGrowthSoilShadeMoistureEdibleMedicinalOther
Willughbeia edulisGedraphol, KuyClimber25.0 10-12 FLMHSNM322

Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.

 

Expert comment

Author

Wall.

Botanical References

Links / References

For a list of references used on this page please go here
A special thanks to Ken Fern for some of the information used on this page.

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