Palaquium leiocarpum
Boerl.
Sapotaceae
Croixia leiocarpa (Boerl.) Baehni
Palaquium molle Pierre ex Becc.
Common Name: Jongkang
General Information
Jongkang is an evergreen tree growing up to 35 metres tall[
334- Title
- Flora of Peninsula Malaysia
- Publication
-
- Author
-
- Website
- http://www.tfbc.frim.gov.my
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- In the process of being assembled (15/07/09), it is currently a series of check sheets giving species name, brief description, habitat and high quality photos of the plants.
]. The bole is straight and cylindrical.
The tree is harvested from the wild for its latex.
Known Hazards
None known
Botanical References
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
Range
Southeast Asia - western and central Malaysia.
Habitat
Lowland freshwater swamp forest[
334- Title
- Flora of Peninsula Malaysia
- Publication
-
- Author
-
- Website
- http://www.tfbc.frim.gov.my
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- In the process of being assembled (15/07/09), it is currently a series of check sheets giving species name, brief description, habitat and high quality photos of the plants.
].
Properties
| Other Uses Rating |  |
| Habit | Evergreen Tree |
| Height | 30.00 m |
| Cultivation Status | Wild |
Cultivation Details
Not known
Edible Uses
None known
Medicinal
None known
Other Uses
The tree is a source of gutta-percha[
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
]. It is considered to be inferior to the gutta percha obtained from Palaquium gutta and some other species, and so is more commonly used to adultuerate the superior forms[
899- Title
- Tree Flora of Sabah and Sarawak Vols 1 - 6
- Publication
-
- Author
- Soepadmo E.; Saw L.G.; Chung R.C.K. (Editors)
- Publisher
- Forest Research Institute Malaysia; Kuala Lumpur.
- Year
- 2002
- ISBN
- 983-2181-27-5
- Description
- A flora of the woody plants of Sabah and Sarawak on the island of Borneo, often giving details of plant uses.
].
Gutta-percha is a natural latex obtained from the sap of the tree. Allowing this fluid to evaporate and coagulate in the sun produces a hard, durable, non-brittle but non-elastic latex which can be made flexible again when heated to temperatures over 50°c, and then retains any form given while cooling. Prior to the advent of synthetic materials, gutta-percha had a wide range of uses - most particularly as an insulating material for electricity wiring and for underwater telegraph wires, a purpose for which it is very well suited since it is bio-inert and so is not attacked by marine plants or animals. Gutta-percha can be moulded into any shape and has been used to make items such as ornate furniture, pistol grips, acid-resistant receptacles and ‘mourning’ jewellery, where its dark colour was an advantage. It has been widely used as the core of golf balls and is still used in modern dentistry where its bio-inertness makes it ideal as a temporary filling for teeth and as a filling material inside tooth fillings[
46- Title
- Dictionary of Economic Plants.
- Publication
-
- Author
- Uphof. J. C. Th.
- Publisher
- Weinheim
- Year
- 1959
- ISBN
- -
- Description
- An excellent and very comprehensive guide but it only gives very short descriptions of the uses without any details of how to utilize the plants. Not for the casual reader.
,
310- Title
- Plant Resources of Southeast Asia
- Publication
-
- Author
-
- Website
- http://proseanet.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- Lots of information on the uses of the plants of SE Asia.
,
]. It is used locally for fixing tools into their handles[
310- Title
- Plant Resources of Southeast Asia
- Publication
-
- Author
-
- Website
- http://proseanet.org/
- Publisher
-
- Year
- 0
- ISBN
-
- Description
- Lots of information on the uses of the plants of SE Asia.
].
Propagation
Seed -
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Useful Tropical Plants Database 2014 by
Ken Fern,
web interface by
Ajna Fern
with help from
Richard Morris.
