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Dacrydium elatum (Roxb.) Wall. ex Hook.
| Family Name: | Podocarpaceae |
| Synonyms: | Dacrydium beccarii var. subelatum Corner, Dacrydium pierrii Hickel, Dacrydium junghuhnii Miq., Juniperus elata Roxb. |
| Common Name: | Sempilor, Hoàng dàn giå, 泪柏, 陆均松 |
Dacrydium elatum, also known as Sempilor, is a coniferous tree. Standing at 40 m tall, the leaves are ornamental and dimorphic. Juvenile leaves are awl-shaped while adult leaves are scale-like.
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Classifications and Characteristics
| Plant Division | Gymnosperms (Non-Flowering Seed Plants) |
|---|---|
| Plant Growth Form | Tree |
| Lifespan (in Singapore) | Perennial |
| Mode of Nutrition | Autotrophic |
| Maximum Height | 40 m |
| Tree or Palm – Trunk Diameter | 1 m |
Biogeography
| Native Distribution | It is found in Myanmar, Vietnam, Laos, Cambodia, Thailand, Peninsular Malaysia, Sumatra and Borneo. |
|---|---|
| Native Habitat | Terrestrial |
| Preferred Climate Zone | Tropical |
| Local Conservation Status | Non-native |
Description and Ethnobotany
| Growth Form | It is a tree, 8 – 40 m tall, with trunk about 0.1 – 1 m wide, billowy dome-shaped crown and brown bark. |
|---|---|
| Foliage | The leaves are dimorphic. Juvenile leaves are awl-shaped (14 mm long and 0.3 mm wide), spreading and curved forward. Adult leaves are scale-like, triangular (1 – 1.5 mm long and 0.4 – 0.6 mm wide) and sharply keeled on the outside. Juvenile shoots are sometimes mixed with adult shoots thus giving a false impression that the leaves change abruptly as the tree matures. |
| Reproductive Parts - non-flowering plant | The male cones produce pollens and occurs singly at the terminal end. They are 4 – 8 mm long and 1 – 1.2mm in diameter. The female cones produce seeds, and occurs singly or in small clusters. They are subtended by a scaly stalk. The seed is ovoid and solitary, about 4 – 4.5 mm long and 3 mm wide. One-third of the base is covered by a swollen appendage of the ‘seed’ scale complex (epimatium). |
| Habitat | It is found in rainforest, up to 1700 m altitude. |
| Cultivation | It remains sterile under local condition. |
| Etymology | The genus, in Greek, means little tear, with reference to the exudation of small resin droplets. The specific epithet, in Latin, means tall, with reference to the tall stature of the tree. |
| Ethnobotanical Uses | Timber & Products: The wood is yellowish with fine grain and slightly scented. Resistant to bending and pressing, the timber is used for construction, building boats and ships, and furniture making. The wood contains essential oil which can be distilled and used for medicinal purpose. |
Landscaping Features
| Landscape Uses | Parks & Gardens |
|---|
Plant Care and Propagation
| Light Preference | Full Sun |
|---|---|
| Water Preference | Moderate Water |
| Plant Growth Rate | Moderate |
| Rootzone Tolerance | Moist Soils, Well-Drained Soils |
References
| References | de Laubenfels, D.J. (1988). Coniferales. In C.G.G.J. van (ed.), Flora Malesiana. Series 1 Vol. 10. Pp. 337–453. Dordrecht: Kluwer Academic Publishers. Hoang, V. S., Khamseng, N. & Kessler, P.J.A. (2004). Trees of Laos and Vietnam: a field guide to 100 economically or ecologically important species. Blumea 49: 201–349 Keng, H. (1990). The Concise Flora of Singapore: Gymnosperms and Dicotyledons, p. 48. Singapore: Singapore University Press. |
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Image Repository
Others
| Master ID | 33237 |
|---|---|
| Species ID | 7651 |
| Flora Disclaimer | The information in this website has been compiled from reliable sources, such as reference works on medicinal plants. It is not a substitute for medical advice or treatment and NParks does not purport to provide any medical advice. Readers should always consult his/her physician before using or consuming a plant for medicinal purposes. |