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Hopea nutans
| Family Name: | Dipterocarpaceae |
| Synonyms: | Hopea lowii |
| Common Name: | Giam, Chengal Batu, Cengal Keras, Cengal Pelanduk |
Name
Classifications and Characteristics
| Plant Division | Angiosperms (Flowering Seed Plants) |
|---|---|
| Plant Growth Form | Tree |
Biogeography
| Native Distribution | Peninsular Malaysia, Borneo |
|---|---|
| Native Habitat | Terrestrial |
| Preferred Climate Zone | Tropical |
Description and Ethnobotany
| Growth Form | Hopea nutans can grow up to 30 m tall and 2.5 m girth with a heavy crown. |
|---|---|
| Trunk | Trunk is dark brown colour and bark sheds in long flakes. |
| Foliage | Leaves are leathery and ovate (about 8 – 13 cm x 4.5 – 8.5 cm) with acuminate apex. Leaf has ladder-like venation and about 9 pairs of secondary veins. Petiole is 12 mm long with short sparsely pale brown hairs. Stipules are very small (2.5mm long) and fall off early. |
| Flowers | It has panicle inflorescence (7 cm long). Flowers have pale yellow petals and 15 stamens in 3 subequal whorls. |
| Fruit | Fruit has 2 enlarged calyx lobes (about 8 cm long). The nut (about 15 mm long) is loosely embraced at the base by the calyx lobes. |
| Habitat | Coastal hills |
| Cultivation | Seedlings require shade and intolerant to dry condition. |
| Etymology | Genus name Hopea is named after Dr John Hope (1725 - 1786), who is a Scottish botanist of the Edinburgh Botanic Garden. |
| Ethnobotanical Uses | Timber & Products: Hopea nutans is the main course Giam timber, which is very hard, heavy and durable. Tree is also harvested for its opaque yellow resin. |
Landscaping Features
| Landscape Uses | Suitable for Roadsides, Parks & Gardens, Coastal |
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Plant Care and Propagation
| Light Preference | Full Sun |
|---|---|
| Water Preference | Moderate Water |
| Plant Growth Rate | Moderate |
| Rootzone Tolerance | Well-Drained Soils, Saline Soils / Salt Spray |
Foliar
| Mature Foliage Colour(s) | Green |
|---|---|
| Leaf Area Index (LAI) for Green Plot Ratio | 3.0 (Tree - Intermediate Canopy) |
Non - Foliar and Storage
| Mature Bark Texture | Peeling / Flaking / Papery, Resinous / Oozing / Stained |
|---|
Floral (Angiosperm)
| Flower Colour(s) | Yellow / Golden |
|---|---|
| Flower Grouping | Cluster / Inflorescence |
Image Repository
Others
| Master ID | 1665 |
|---|---|
| Species ID | 2958 |
| 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. |
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