Apocynaceae FAMILY Least Concern

Dyera costulata

Edibility

0/5

Medicinal

1/5

Safety & Hazards

None known

Botanical Description

Hill jelutong is a large, deciduous, canopy tree with a spreading crown that can grow up to 75 metres tall. It has an unbuttressed bole that can be unbranched for 15 - 30 metres and up to 3 metres in diameter[ 316 Title Tropical Timbers of the World. Ag. Handbook No. 607. Publication Author Chudnoff. Martin. Publisher USDA Forest Service. Wisconsin. Year 1984 ISBN Description Terse details on the properties of the wood of almost 400 species of trees from the Tropics. , 359 Title Trees of Sungai Wain Publication Author Website http://www.nationaalherbarium.nl/Sungaiwain/ Publisher Year 0 ISBN Description An excellent site with factsheets on almost 1,000 species of forest trees growing at Sungai Wain in Indonesia. Each factsheet has good quality pictures plus basic information on the ecology and uses of the plants. ]. The plant has been tapped commercially for its latex for hundreds of years. It is mainly wild forest trees that are exploited, and these are protected for further utilization[ 317 Title Mansfeld's Database of Agricultural and Horticultural Plants Publication Author Website http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336 Publisher Year 0 ISBN Description Terse details of a huge range of useful plants. ]. In the Malay Peninsula, the tree is also cultivated[ 317 Title Mansfeld's Database of Agricultural and Horticultural Plants Publication Author Website http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:3:4292127278597336 Publisher Year 0 ISBN Description Terse details of a huge range of useful plants. ]. The tree has long been exploited for timber and latex and the risk of extinction was recognised 60 years ago[ 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. ]. However, the species regenerates readily in logged-over forest, it coppices well and is extremely resistant to girdling[ 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. ]. It has therefore been classified as being of 'Lower risk' in the IUCN Red List of Threatened Species(2009)[ 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. ].

Habitat & Origin

Origintropical

Native RangeSoutheast Asia - Malaysia, Thailand, Indonesia.

HabitatPrimary evergreen lowland or hill forest up to 300 metres[ 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. ]. In undisturbed forests at elevations up to 400 metres. Usually on hillsides and ridges on clayey to sandy soils. In secondary forests usually present as a pre-disturbance remnant[ 359 Title Trees of Sungai Wain Publication Author Website http://www.nationaalherbarium.nl/Sungaiwain/ Publisher Year 0 ISBN Description An excellent site with factsheets on almost 1,000 species of forest trees growing at Sungai Wain in Indonesia. Each factsheet has good quality pictures plus basic information on the ecology and uses of the plants. ].