Native Plants
Dryobalanops oblongifolia
Keladan
LC
Least Concern
IUCN Red List of Threatened Species
ver 3.1, 2018
EN
Dryobalanops oblongifolia subsp. occidentalis
Endangered
IUCN Red List of Threatened Species
ver 2.3, 1998
EN
Dryobalanops oblongifolia subsp. oblongifolia
Endangered
IUCN Red List of Threatened Species
ver 2.3, 1998
LC
Dryobalanops oblongifolia subsp. occidentalis
Least Concern
Malaysia Plant Red List
2021
LC
Dryobalanops oblongifolia subsp. oblongifolia
Least Concern
Sarawak Plant Red List
ver 3.1, 2014
Taxonomy
-
Kingdom
-
Division
-
Class
-
Order
-
Family
-
Genus
-
Specific Epithetoblongifolia Dyer
-
Infraspecific
- subsp. oblongifolia
- subsp. occidentalis P.S.Ashton
-
Vernacular Name
- Kapur (Malay)
- Kapur Keladan (Malay)
- Kapur Kelansau (Sarawak)
- Keladan (Malay)
- Kelansau (Iban)
- Kelansau (Sarawak)
-
ResidentialNative
The taxonomic status is pending for approval
Description
Dryobalanops oblongifolia, commonly known as the oblong-leaved kapur or oblong-leaved ironwood, is a species of tree in the Dipterocarpaceae family (Chudnoff, 1984). It is normally known locally as keladan. It is native to the island of Borneo, Peninsular Malaysia and where it grows in lowland and hill dipterocarp forests (Whitmore, 1998). The tree can reach heights of up to 50 meters (Chudnoff, 1984) and has a straight, cylindrical trunk with flaky, dark yellowish-brown bark (Whitmore, 1998).
The leaves of Dryobalanops oblongifolia are alternate and oblong in shape, with a glossy green color and a smooth, leathery texture (Chudnoff, 1984). They are typically about 6-20 cm long and 4.5-5 cm wide (Whitmore, 1998). The flowers of the tree are small, white and glabrous with yellow anthers and are followed by small, winged, round fruit containing seeds (Chudnoff, 1984).
Habitats
| No | Description | Suitability | Seasonality |
|---|---|---|---|
| 1 |
Dryobalanops oblongifolia subsp. occidentalis
Forest → Lowland Dipterocarp Forest (Malayan, Burmese)
|
Unknown | Unknown |
References : http://www.iucnredlist.org/technical-documents/classification-schemes/habitats-classification-scheme-ver3
Assessment
| Year Published | Assessment | Red List Category | Version |
|---|---|---|---|
| 2021 | Malaysia Plant Red List |
Dryobalanops oblongifolia subsp. occidentalis
Least Concern (LC)
|
N/A |
| 2018 | IUCN Red List of Threatened Species |
Least Concern (LC)
|
3.1 |
| 2014 | Sarawak Plant Red List |
Dryobalanops oblongifolia subsp. oblongifolia
Least Concern (LC)
|
3.1 |
| 2010 | Malaysia Plant Red List |
Dryobalanops oblongifolia subsp. occidentalis
Least Concern (LC)
|
N/A |
| 1998 | IUCN Red List of Threatened Species |
Dryobalanops oblongifolia subsp. occidentalis
Endangered (EN)
|
2.3 |
| 1998 | IUCN Red List of Threatened Species |
Dryobalanops oblongifolia subsp. oblongifolia
Endangered (EN)
|
2.3 |
Location
by State Location
- Johore 4
- Kelantan 1
- Perak 1
- Selangor 3
- Terengganu 1
- Federal Territories of Putrajaya 1
Based on publications, specimens, and images
Specimen
| Collection Center | Dried | Live | Slide | Wet | Total | |
|---|---|---|---|---|---|---|
| 2 | ||||||
| 15 | ||||||
| 1 | ||||||
| 1 | ||||||
| 21 |
Biodiversity Experts
| Profile | |
|---|---|
|
Ahmad Aldrie Amir (Dr.)
Universiti Kebangsaan Malaysia (UKM)
|
Vascular,
Biodiversity, Climate Change, Conservation, Ecosystems, Environment, Evolution, Forest, History, Law and Policy, Management, Marine & Coastal, Protected Areas & Science
|
|
Alona Cuevas Linatoc (Assoc. Prof. Dr.)
Universiti Tun Hussein Onn Malaysia (UTHM)
|
Vascular,
Biodiversity & Conservation
|
|
Anisah Lee Abdullah (Assoc. Prof. Dr.)
Universiti Sains Malaysia (USM)
|
Coral Reefs, Vascular,
Biodiversity, Climate Change, Conservation, Ecosystems, Environment, Geoinformatics, Management, Marine & Coastal, Protected Areas, Science, Technology & Water
|
|
Asyraf Mansor (Dr.)
Universiti Sains Malaysia (USM)
|
Palms, Vascular (Ecology),
Biodiversity, Conservation, Ecosystems, Environment, Evolution & Forest
|
|
Avelinah Julius (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Chan Yoke Mui (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Palms (Ecology), Vascular (Ecology),
Conservation, Biodiversity, Forest & Genetics
|
|
Cheah Yih Horng (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Moss, Vascular,
Biodiversity & Systematics
|
|
Chew Ming Yee (Ms.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
|
|
Chong Ju Lian (Dr.)
Universiti Malaysia Terengganu (UMT)
|
Mammals (Ecology), Vascular (Ecology),
Invasive Alien Species, Protected Areas, Digital Sequence Information (DSI), Marine & Coastal & Climate Change
|
|
E. Soepadmo (Prof.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
|
|
Vascular,
|
|
|
John Baptist Sugau (Mr.)
Department of Forestry Peninsular Malaysia (JPSM)
|
Vascular (Taxonomy),
|
|
Kartini Binti Saibeh (Dr.)
Universiti Malaysia Sabah (UMS)
|
Vascular,
Agriculture, Biodiversity & Conservation
|
|
Lau Kah Hoo (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular, Ginger,
Conservation
|
|
Lillian Chua Swee Lian (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
Conservation
|
|
Lim Chung Lu (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Mahani Bt. Mansor Clyde (Prof. Dr.)
Universiti Kebangsaan Malaysia (UKM)
|
Vascular,
|
|
Mohamad Azani Alias (Assoc. Prof. Dr.)
Universiti Putra Malaysia (UPM)
|
Vascular (Taxonomy), Vascular, Vascular, Amphibians, Amphibians,
Biodiversity, Conservation, Climate Change, Protected Areas & Forest
|
|
Mohd Fahmi Abu Bakar (Ts. Dr.)
Universiti Sultan Zainal Abidin (UniSZA)
|
Vascular,
Digital Sequence Information (DSI), Evolution, Genetics, Molecular & Systematics
|
|
Mohd Nazre Salleh @ Japri (Assoc. Prof. Dr.)
Universiti Putra Malaysia (UPM)
|
Vascular,
Biodiversity
|
|
Mohd Norfaizal Ghazalli (Dr.)
Malaysian Agricultural Research and Development Institute (MARDI)
|
Vascular, Pitcher plants,
Agriculture, Biodiversity, Conservation, Ecosystems, Science, Systematics & Taxonomy
|
|
Nadiah Idris (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Nazahatul Anis Amaludin (Dr.)
Universiti Malaysia Kelantan (UMK)
|
Vascular (Ecology),
Biodiversity & Conservation
|
|
Nor Ezzawanis Abdullah Thani (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
Digital Sequence Information (DSI)
|
|
Norzielawati Bt. Salleh (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
Biodiversity, Forest & Molecular
|
|
Nur Kyariatul Syafinie Abdul Majid (Ms.)
Universiti Malaysia Kelantan (UMK)
|
Vascular (Ecology),
Biodiversity, Climate Change, Conservation, Forest & Protected Areas
|
|
Nur Supardi Md Noor (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Palms, Vascular,
Biodiversity, Climate Change, Conservation, Ecosystems, Environment, Forest & Management
|
|
Ong Poh Teck (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy), Orchids,
|
|
Rafidah Abdul Rahman (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Richard Chung Cheng Kong (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Rusea Go (Prof. Dr.)
Universiti Putra Malaysia (UPM)
|
Orchids (Taxonomy), Vascular (Taxonomy), Vascular (Ecology),
Biodiversity, Conservation, Environment, Forest, Management, Protected Areas, Climate Change & Invasive Alien Species
|
|
Sam Yen Yen (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy), Ginger,
|
|
Saw Leng Guan (Dr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
|
|
Shamsul Khamis (Dr.)
Universiti Kebangsaan Malaysia (UKM)
|
Vascular (Taxonomy),
Taxonomy
|
|
Siti Aishah Abdullah (Assoc. Prof. Dr.)
Universiti Malaysia Terengganu (UMT)
|
Vascular,
|
|
Siti Munirah Mat Yunoh (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
Marine & Coastal
|
|
Suhaida Mustafa (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Ecology),
Conservation
|
|
Syahida Emiza Suhaimi (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
|
|
Syazwani Bt. Azeman (Mrs.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
Biodiversity, Forest & Science
|
|
Tam Sheh May (Dr.)
Taylor's University
|
Orchids, Vascular,
Biodiversity, Data Analysis, Evolution, Genetics & Molecular
|
|
Tan Swee Lian (Dr.)
Academy of Sciences Malaysia (ASM)
|
Vascular (Ecology),
Agriculture & Biodiversity
|
|
Ummul Nazrah Abdul Rahman (Ms.)
Forest Research Institute Malaysia (FRIM)
|
Vascular (Taxonomy),
|
|
Wendy Yong Sze Yee (Ms.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
Conservation & Biodiversity
|
|
Yao Tze Leong (Mr.)
Forest Research Institute Malaysia (FRIM)
|
Vascular,
Biodiversity & Ecosystems
|
|
Yong Kien Thai (Dr.)
University of Malaya (UM)
|
Moss, Vascular (Taxonomy), Ferns (Taxonomy),
Protected Areas, Biodiversity, Conservation, Evolution & Taxonomy
|
PM - Peninsular Malaysia; SBH - Sabah; SWK - Sarawak; SEA - Southeast Asia; W - World;
References
Article
- Ang, L.H., Ho, W.M. & Tang, L.K. (2017). Domestication of Ten Endemic, Endangered and Threatened Tree Species in a Degraded Terrestrial Ecosystem in Peninsular Malaysia. Seminar on Reclamation, Rehabilitation and Restoration of Disturbed Sites: Planting of National and IUCN Red List Species, 15-17 August 2017, Kuala Lumpur (14), 114-118
- Ang, L.H., Ho, W.M., Tang, L.K. & Hazarimmah, S.O. (2017). Increasing Tree Diversity Index through Planting of 30 Indigenous Rainforest Tree on a 5 ha Slime Tailings. An Introduction to ABS: Access to biological resources and the sharing of benefits arising from their utilisation, 102-106
- Ang, L.H. (2017). Successful Greening Models of Some Disturbed Sites in Peninsular Malaysia. Seminar on Reclamation, Rehabilitation and Restoration of Disturbed Sites: Planting of National and IUCN Red List Species, 15-17 August 2017, Kuala Lumpur (14), 6-14
- Saw, L.G. & Sam, Y.Y. (1999). Conservation of Dipterocarpaceae in Peninsular Malaysia. Journal of Tropical Forest Science, 12(3): 593-615. . https://info.frim.gov.my/infocenter_applications/jtfsonline/jtfs/v12n3/593-615.pdf
- Watling, R. & Lee, S.S. (1995). Ectomycorrhizal fungi associated with members of the Dipterocarpaceae in Peninsular Malaysia-I. Journal of Tropical Forest Science 7 (4), 657-669
- Yamada, T., Watanabe, K., Okuda, T., Sugimoto, T. & Noor Azlin, Y. (2016). Growth and Survival of Trees Planted in an Oil Palm Plantation: Implications for Restoration of Biodiversity. Journal of Tropical Forest Science 28 (1), 97-105
Book
- FRIM : A Year of Colours, 2014. Forest Research Institute Malaysia, Malaysia. pp. 127.
- Abd. Latif, M., Nik Zanariah, N.M., Zawiah, N. & Othaman, H. (2014). Kenali 114 Spesies Buah-Buahan Liar. Institut Penyelidikan Perhutanan Malaysia & Kementerian Sumber Asli & Alam Sekitar, Malaysia. pp. 228-229.
- Adnan, M., Zainuddin, A.F., Hamzah, M.A., Moorthy, M. & Mohamad Zaki, M.I. (2018). Koleksi Pokok Taman Botani Kepong. Institut Penyelidikan Perhutanan Malaysia (FRIM), Malaysia. pp. 1-234.
- Chew, M.Y., Salleh, N., Azeman, S., Yap, J.W., Sam, Y.Y. & Chung, R.C.K. (2021). Wayside Trees: The Natural Pillars and Roofs of the Perdana Botanical Garden. Kuala Lumpur City Hall and Forest Research Institute Malaysia, Malaysia. pp. 182.
- Chua, L.S.L., Suhaida, M., Hamidah, M. & Saw, L.G. (2010). Malaysia Plant Red List: Peninsular Malaysian Dipterocarpaceae. Forest Research Institute Malaysia (FRIM) & Ministry of Natural Resources and Environment Malaysia, Malaysia. pp. 73, 146. — [ Adobe PDF (PDF) ]
- Julia, S., Chong, L., Vilma, B., Esther, S. & Pearce, K.G. (2014). Sarawak Plant Red List Dipterocarpaceae: Series I: Dipterocarpus, Dryobalanops & Shorea. Sarawak Forestry Corporation Sdn. Bhd., Malaysia. pp. 193.
- Ratnam, L. (1995). Windows on The Forest: Glimpses of FRIM for the Nature Loving Visitor, Issue/No. 1. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 143.
- Soepadmo, E., Saw, L.G. & Chung, R.C.K. (2004). Tree Flora of Sabah and Sarawak, Volume 5. Sabah Forestry Department, Forest Research Institute Malaysia (FRIM), Sarawak Forestry Department, Malaysia. pp. 528.
- Tan, A.L., Ummu, H.B., Madihah, M.N., Fadzureena, J. & Norbaiah, M.Y. (2020). Ulaman & Herba Masakan di FRIM. Amalan Tradisi & Khasiat Ubatan. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 290.
- Yong, W.S.Y., Chua, L.S.L., Lau, K.H., Siti-Nur Fatinah, K., Cheah, Y.H., Yao, T.L., Rafidah, A.R., Lim, C.L., Syahida-Emiza, S., Ummul Nazrah, A.R., Nor-Ezzawanis, A.T., Chew, M.Y., Siti Munirah, M.Y., Julius, A., Phoon, S.N., Sam, Y.Y., Nadiah, I., Ong, P.T., Sarah Nabila, R., Suhaida, M., Muhammad-Alif Azyraf, A., Siti Eryani, S., Yap, J.W., Jutta, M., Azeman, S., Salleh, N., Kiew, R. & Chung, R.C.K. (2021). Malaysia Red List: Plants of Peninsular Malaysia, Volume 1, Issue/No. 2. Forest Research Institute Malaysia (FRIM), Malaysia. pp. 316, 753.
Magazine/Bulletin
- Durability of Timbers for Indoor Applications in Malaysia. Timber Technology Bulletin: Compilation of Timber Technology Bulletins 1995-2015 (57), 2016. Forest Research Institute Malaysia, Malaysia.
- Equivalent Timbers Of Southeast Asia. Timber Technology Bulletin (25), 2002. Forest Research Institute Malaysia (FRIM), Malaysia.
- Timber Notes -Medium Hardwoods (I) (Kapur,Kasai,Kelat,Keledang,Kempas). Timber Technology Bulletin: Compilation of Timber Technology Bulletins 1995-2015 (57), 2016. Forest Research Institute Malaysia (FRIM), Malaysia.
- Conservation Malaysia (30), 2019. Forest Research Institute Malaysia (FRIM), Malaysia. — [ Adobe PDF (PDF) ]
- Malaysian and Indonesian Timbers Equivalent Names. Timber Technology Bulletin: Compilation of Timber Technology Bulletins 1995-2015 (57), 2016. Forest Research Institute Malaysia (FRIM), Malaysia.
Newsletter
- Ida Suraini, A.S. (2013, December). FRIM in FOCUS. Forest Research Institute Malaysia (FRIM). Retrived November 13, 2015, from https://www.mybis.gov.my/art/123
- Ida Suraini, A.S. (2009, June). FRIM in FOCUS. Forest Research Institute Malaysia. Retrived November 18, 2015, from https://www.mybis.gov.my/art/139
- Ida Suraini, A.S. (2013, September). FRIM in FOCUS. Forest Research Institute Malaysia (FRIM). Retrived November 16, 2015, from https://www.mybis.gov.my/art/124
Publications
Acknowledgements :- Ms. Aida Salihah Binti Abu Bakar, Ms. Ajla Rafidah Baharom, Mrs. Aziemah Binti Kinan, Mr. Badrul Amin Bin Jaffar, Mrs. Faridah Anas, Mrs. Hazlina Ali, Mr. Hazrul Nizam Bin Abdul Aziz, Mr. Mohamad Amini Bin Nordin, Mr. Mohamad Firdaus Bin Mohamad Ridzwan, Mrs. Norhaslinda Mohd Nor, Ms. Nur Farahin Binti Mustafa, Mrs. Nur Hazwanie Binti Abd Halim, Ms. Nur Syahirah Binti Abd Hamid, Ms. Nurfadzilah Bt Azmi, Ms. Nurfarhana Hizan Binti Hijas, Ms. Nurul Aimi Amirah Binti Mohd Zaki, Ms. Siti Zubaidah Binti Abdul Latif, Mr. Tan Kok Kiat, Ms. Umairah Binti Ishak & Mr. Yasser Mohamed Arifin
Photo credit :- Ahmad Firdaus Zainuddin, Chan YM, L.S.L. Chua, Tan Sin Hoong, Yasser Arifin & Zawiah Ngah
Species Citation :- Dryobalanops oblongifolia. Malaysia Biodiversity Information System (MyBIS). Accessed via https://www.mybis.gov.my/sp/29700. [Retrieved 29 March 2023].
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