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Hydnocarpus castaneus Hook.f. & Thomson
| Family Name: | Achariaceae |
| Synonyms: | Hydnocarpus castanea Hook.f. & Thomson |
| Common Name: | Setumpol, Alai Batu |
Name
Classifications and Characteristics
| Plant Growth Form | Tree |
|---|---|
| Mode of Nutrition | Autotrophic |
Biogeography
| Native Distribution | Peninsular Thailand, Malaysia, Sumatra |
|---|---|
| Native Habitat | Terrestrial |
| Preferred Climate Zone | Tropical |
Description and Ethnobotany
| Growth Form | Medium to large-sized tree, able grow up to about 15 - 30 m tall in its natural habitat. |
|---|---|
| Trunk | Girth size can reach up to about 60 cm wide, bark is smooth and greyish-white. |
| Foliage | Green elliptic to oblong leaves, stiffly coriaceous, measuring about 17 - 30 cm long and 6.5 - 8 cm wide, stipules hairy and about 4 mm long, petiole stout. |
| Flowers | White fragrant flowers borne on an axillary inflorescence, male flowers petals linear-oblong and about 8 - 11 mm long, sepals obovate and about 6 - 7 mm long and 4 - 5 mm wide., female flowers petals and sepals similar to male flowers. |
| Fruit | Fruit is brown and globose in shape, texture tomentose, contains large angular seeds. |
| Etymology | Genus Hydnocarpus is from Greek words "hydnon" which means "a tuber or a tubercle" and "karpos" which means "a fruit" and they refer to the shape of the fruit. Species castaneus means chestnut-brown. |
Landscaping Features
| Desirable Plant Features | Ornamental Flowers |
|---|---|
| Landscape Uses | Suitable for Roadsides, 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 |
| Propagation Method | Seed |
Foliar
| Mature Foliage Colour(s) | Green |
|---|---|
| Foliar Attachment to Stem | Petiolate |
Floral (Angiosperm)
| Flower Colour(s) | White |
|---|---|
| Flower Grouping | Cluster / Inflorescence |
Fruit, Seed and Spore
| Mature Fruit Colour(s) | Brown |
|---|
Image Repository
Others
| Master ID | 1674 |
|---|---|
| Species ID | 2967 |
| 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. |



