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Kalak
kambing
Finlaysonia obovata
Family Apocynaceae
updated
Jan 2013
Where seen? This climber with distinctive horn-like fruits
is rarely seen. According to Hsuan Keng, it is found in mangroves
and tidal river banks including at Kranji and Geylang. Ang et al have
found it in some of our remaining mangroves. Generally uncommon in
global distribution, but where they occur, they can be common. Usually
found in mangroves and on borders of tidal creeks and fishponds.
Features: A slender, woody climber
up to 5m long. Scrambling and draping over mangrove trees. Bark pale,
warty and papery. A white latex oozes out of all broken plant parts.
Leaves spoon-shaped with tiny pointed tip (5-10cm) fleshy glossy green,
arranged opposite one another.
Flowers small (about 1cm) with thick petals which are fuzzy and hairy
on the inside, arranged in a branched inflorescence. According to
Giesen, the flowers have a noxious smell. According to Ang et al,
it is believed to be pollinated by flies and beetles that are attracted
to rotting carcasses. In Java it flowers comparatively rarely.
Fruits are cresent-shaped pods (8-10cm) fleshy ribbed in a pair, described
as resembling the horns of a buffalo. Each fruit contains many brown
flat seeds.
Human
uses: According to Burkill, the leaves are eaten in salads
in the Moluccas, but "apparently this use does not extend to
Malaya". According to Ang et al, this plant was recently found
to contain substances that have antibacterial properties against fish
diseases.
Status and threats: This climber
is listed as 'Critically Endangered' on the Red List of threatened
plants of Singapore. This is because it is estimated that there are
fewer than 50 mature individuals left in the wild with some evidence
of decline and fragmentation of its natural habitat.
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Kranji Canal,
Mar 09
Mandai, Dec
12
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Mandai, Mar
11
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Mandai, Dec
12
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Mandai, Dec
12
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Mandai, May
11
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Kranji Canal,
Mar 09
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Kranji Canal,
Mar 09
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Kalak
kambing on Singapore shores |
Links
References
- Ang, W. F.,
P. X. Ng, S. Teo, A. F. S. L. Lok & H. T. W. Tan, 2010. The status
and distribution in Singapore of Finlaysonia obovata Wall.
(Apocynaceae). Nature in Singapore, 3: 7-11.
- Hsuan Keng,
S.C. Chin and H. T. W. Tan. 1990, The
Concise Flora of Singapore: Gymnosperms and Dicotyledons.
Singapore University Press. 222 pp.
- Davison,
G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
Nature Society (Singapore). 285 pp.
- Burkill,
I. H., 1993. A
Dictionary of the Economic Products of the Malay Peninsula.
3rd printing. Publication Unit, Ministry of Agriculture, Malaysia,
Kuala Lumpur. Volume 1: 1-1240; volume 2: 1241-2444.
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