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Useful Tropical Plants

Shorea obtusa

Wall. ex Blume

Dipterocarpaceae

+ Synonyms

Common Name:

Shorea obtusa
Leaves
Photograph by: Tony Rodd
Creative Commons License
Shorea obtusa Shorea obtusa

General Information

Shorea obtusa is a deciduous tree that can grow from 10 - 30 metres tall. In larger trees the bole can be unbranched for up to 15 metres and generally around 60cm in diameter[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
The wood is of high commercial value and is commonly harvested from the wild and traded commercially. It also supplies a resin for local use and has various local medicinal applications.
The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2011)[
338
Title
IUCN Red List of Threatened Species
Publication
 
Author
 
Website
http://www.iucnredlist.org/
Publisher
 
Year
0
ISBN
 
Description
A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat.
].

Known Hazards

None known

Botanical References


Range

Southeast Asia - Myanmar, Thailand, Cambodia, Laos, Vietnam.

Habitat

Dry, deciduous, dipterocarp forests, deciduous monsoon forests and open, dry degraded areas like
mixed savannah forests at elevations from 200 - 1,000 metres[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

Properties

Conservation StatusLeast Concern
Medicinal Rating *  *
Other Uses Rating *  *  *  *
HabitDeciduous Tree
Height20.00 m
Cultivation StatusWild

Cultivation Details

A plant of tropical monsoon climates, where it grows at an elevation up to 1,000 metres. It grows best in areas with a mean annual precipitation of 1,250 - 2,000mm, with a well pronounced wet season and a dry season of up to 6 months. However, it can also grow with less than 1,250mm[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
Requires a sunny position[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]. It grows well on well-drained sandy soils, rocky soils, lateritic soils, including ferric acrisols, gleyic acrisols, and ferralic cambisols. Unlike the majority of dipterocarps, it can survive even on very poor
soils and rocky areas[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]. An acid to neutral pH is suitable[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]. In Cambodia it is often found on gray soil on shale[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
The plant is adapted to growing in areas where fires are common in the dry season[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

Edible Uses

None known

Medicinal

A resin obtained from the tree is antibiotic. It is used in the treatment of wounds, ulcers etc[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
,
730
Title
A Field Guide to Forest Trees of Northern Thailand
Publication
 
Author
Gardener S.; Sidisunthorn P.; Anusarnsunthorn V.
Publisher
Kobfai Publishing Project; Bangkok.
Year
2000
ISBN
974-7799-01-4
Description
An excellent, concise guide to 430 species, plus notes on another 450 species. Excellent photographs and a separate section on distribution and plant uses.
]. It is also recommended as a cure for dysentery[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

The bark is used to treat malaria[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

Other Uses

The bark has a high tannin content[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

A yellowish resin exudes from the bark. It is used for caulking baskets and boats and to make a traditional torch[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
,
730
Title
A Field Guide to Forest Trees of Northern Thailand
Publication
 
Author
Gardener S.; Sidisunthorn P.; Anusarnsunthorn V.
Publisher
Kobfai Publishing Project; Bangkok.
Year
2000
ISBN
974-7799-01-4
Description
An excellent, concise guide to 430 species, plus notes on another 450 species. Excellent photographs and a separate section on distribution and plant uses.
].

The heartwood is brown, turning to dark brown or dark reddish brown, often with fine dark lines; the narrow band of sapwood is pale yellow to pale brownish-white. Texture is medium, the grain interlocked and lustre is dull. The wood is heavy, very hard and durable, especially in the open and in contact with water. Sawing is reported to be rather difficult, mostly due to the high resin content; the wood works quite smooth; it is slightly susceptible to surface cracking and end splitting. However, untreated sleepers have lasted for 15 years[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
]. The wood is used for construction works, bridges, piles, ship-building, framing of boats, utility and garden furniture, interior uses such as parquet flooring, heavy-duty flooring, window- and door frames. It is also very valuable for railway sleepers[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].

Propagation

Seed. The viability of freshly collected seeds is low and after screening out those attacked by insects and clipping the wings, they are sown right away into shaded nursery beds. Survival percentage has been reported to be 65 - 75%[
404
Title
Digital Compendium of Forestry Species of Cambodia
Publication
 
Author
 
Website
http://www.digitalspecies.blogspot.com
Publisher
www.digitalspecies.blogspot.com; Phnom Penh
Year
2008
ISBN
 
Description
A very detailed booklet, produced in PDF format on the internet, giving information on around 100 species of trees.
].
Cite as: Tropical Plants Database, Ken Fern. tropical.theferns.info. 2018-11-12. <tropical.theferns.info/viewtropical.php?id=Shorea+obtusa>

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