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Useful Tropical Plants

Gymnostoma sumatranum

(Jungh. ex de Vriese) L.A.S.Johnson

Casuarinaceae

+ Synonyms

Casuarina sumatrana Jungh.

Common Name: Ru

Gymnostoma sumatranum
Cultivated plant at the Forest Research Institute of Malaysia
Photograph by: scott.zona
Creative Commons License

General Information

Ru is a monoecious evergreen tree growing 5 - 10 metres tall[
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.
].
The wood is often utilized locally, the tree sometimes being cultivated as a fuel crop[
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 also widely grown as an ornamental tree in Asia, where it has been suggested that it could be used as a Christmas tree[
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.
].

Known Hazards

None known

Botanical References


Range

Southeastern Asia - Indonesia in Sumatra.

Habitat

Lowland forests on nutrient poor clay soils[
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.
].

Properties

Other Uses Rating *  *
HabitEvergreen Tree
Height10.00 m
Cultivation StatusCultivated, Ornamental, Wild

Cultivation Details


Grows naturally on podsols - these are nutrient poor soils consisting of a leached clay underneath a layer of organic material comprising mainly acid leaf fall from conifers.
This species has a symbiotic relationship with certain soil bacteria, these bacteria form nodules on the roots and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[
200
Title
The New RHS Dictionary of Gardening. 1992.
Publication
 
Author
Huxley. A.
Publisher
MacMillan Press
Year
1992
ISBN
0-333-47494-5
Description
Excellent and very comprehensive, though it contains a number of silly mistakes. Readable yet also very detailed.
].

Edible Uses

None known

Medicinal

None known

Other Uses

The wood is extremely hard, very heavy, tough and durable[
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 used for the handles of tools[
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.
] but is rarely used because supplies are limited[
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 as a fuel and also yields excellent charcoal[
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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