Name
Classifications and Characteristics
| Plant Division | Angiosperms (Flowering Seed Plants) (Dicotyledon) |
|---|---|
| Plant Growth Form | Tree (Small (6m-15m)), Shrub |
| Lifespan (in Singapore) | Perennial |
| Mode of Nutrition | Autotrophic |
| Plant Shape | Irregular |
| Maximum Height | 10 m |
Biogeography
| Native Distribution | Sumatra, Peninsular Malaysia, Natuna Island, Pulau Karimata, and Borneo |
|---|---|
| Native Habitat | Terrestrial (Primary Rainforest, Secondary Rainforest, Freshwater Swamp Forest) |
| Preferred Climate Zone | Tropical |
Description and Ethnobotany
| Growth Form | It is a shrub or tree up to 10 m tall, with a reddish-brown, flaky bark. |
|---|---|
| Foliage | Its opposite, stalked leaves have leathery leaf blades that are oval, and 2–10 by 1–5 cm, with a waxy layer on its undersides. |
| Flowers | Its flowers have crimson petals and curved boat-shaped sepals. They are usually found in branched, flowering clusters. |
| Fruit | Its fruits are capsules, 7–10 by 3–4 mm, and covered for half of its length by the sepals. Its winged seeds are found in a group of 4–8 per locule. |
| Habitat | It grows in lowland primary and secondary kerangas forest on white sand, in peat swamps, and freshwater swamp forests. |
| Associated Fauna | Its flowers are insect-pollinated. |
| Cultivation | It can be propagated by seed. |
| Etymology | Greek kratos, strength; Greek xulon, wood, referring to the strong timber. Latin glaucum, with a bloom, referring to the waxy layer on the leaf surface |
Landscaping Features
| Landscaping | It may be suitable for parks and streetscapes. |
|---|---|
| Desirable Plant Features | Ornamental Flowers |
| Landscape Uses | General, Suitable for Roadsides, Parks & Gardens, Small Gardens |
Fauna, Pollination and Dispersal
| Pollination Method(s) | Biotic (Fauna) |
|---|---|
| Seed or Spore Dispersal | Abiotic |
Plant Care and Propagation
| Light Preference | Full Sun, Semi-Shade |
|---|---|
| Water Preference | Moderate Water |
| Plant Growth Rate | Moderate |
| Rootzone Tolerance | Moist Soils, Well-Drained Soils, Fertile Loamy Soils |
Foliar
| Foliage Retention | Evergreen |
|---|---|
| Mature Foliage Colour(s) | Green |
| Mature Foliage Texture(s) | Leathery |
| Foliar Type | Simple / Unifoliate |
| Foliar Arrangement Along Stem | Opposite |
| Foliar Attachment to Stem | Petiolate |
| Foliar Shape(s) | Non-Palm Foliage (Oval) |
| Foliar Venation | Pinnate / Net |
| Foliar Margin | Entire |
Floral (Angiosperm)
| Flower & Plant Sexuality | Bisexual Flowers |
| Flower Colour(s) | Red |
|---|---|
| Flower Grouping | Cluster / Inflorescence |
| Flower Location | Axillary |
| Flower Symmetry | Radial |
Fruit, Seed and Spore
| Mature Fruit Colour(s) | Brown |
|---|---|
| Fruit Classification | Simple Fruit |
| Fruit Type | Dehiscent Dry Fruit , Capsule |
Image Repository
Others
| Master ID | 29077 |
|---|---|
| Species ID | 3391 |
| 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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