No Data Found
Alstonia scholaris
Indian Pulai
Intermediate Sensitivity
| Species Name | Alstonia scholaris |
|---|---|
| Common Name | Indian Pulai |
| Family | Apocynaceae |
| Genus | Alstonia |
| Taxonomic Synonyms/Past Names | |
| Taxonomic Notes |
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Species Information
1. Description
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Insufficient Data
2. Tree Size
Large (>15 m)
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Small (4-10 m) (0)
Medium (10-15 m) (0)
Large (>15 m) (1)
Unknown (0)
3. Full Distribution
- A widespread species ranging from the Indian subcontinent to South China, Southeast Asia and Northern Australia
4. Habitat and Ecology
- Found naturally in lowland forests and sometimes in secondary forests
5. Altitude (in meters)
- 300-1000 m a.s.l
6. Landscape Type
Blue-green Corridors
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Urban Streets (0)
Blue-green Corridors (1)
Small Urban Green Spaces (0)
Coastal Fronts (0)
Unknown (0)
7. IUCN Conservation Status
Least Concern
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Not Evaluated (0)
Data Deficient (0)
Least Concern (1)
Near Threatened (0)
Vulnerable (0)
Endangered (0)
Critically Endangered (0)
Extinct in the Wild (0)
Extinct (0)
Unknown (0)
8. Malaysian Red List from MyBIS
Least Concern
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Not Evaluated (0)
Not Applicable (0)
Data Deficient (0)
Least Concern (1)
Near Threatened (0)
Vulnerable (0)
Endangered (0)
Critically Endangered (0)
Regionally Extinct (0)
Extinct in the Wild (0)
Extinct (0)
Unknown (0)
9. Are more than 100 individuals available in local nurseries?
Yes
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Yes (1)
No (0)
Unknown (0)
10. How would you characterise the growth rate of this species?
Fast
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Fast (1)
Medium (0)
Slow (0)
Unknown (0)
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- Specimens in India have reached a height of 3.6 m within 3.5 years. [1]
11. Does this species have an invasive root system?
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- It has deep roots with water availability [1]
12. Is this species damaging or does it have staining resin or sap?
Yes
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Yes (1)
No (0)
Unknown (0)
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- Produces white latex, sap [1]
13. Does this species produce large and/or staining fruits?
Yes
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Yes (1)
No (0)
Unknown (0)
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- Its fruits are slender linear dehiscent follicles, 20-40 (-63) cm long and 3-5 mm wide. They are produced in hanging pairs, ripening from green to brown. No staining. [1]
14. Does this species produce substances in its bark, leaves, fruits and/or seeds that are poisonous or harmful to humans?
Yes
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Yes (1)
No (0)
Unknown (0)
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- Produces pollen during blooming that is known to cause nasal allergies [1]
15. Does this species have specific lighting requirements?
Full sun
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Full sun (1)
Partial sun & shade (0)
Full shade (0)
Partial shade (0)
Unknown (0)
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16. How would you characterise the air pollution tolerance of this species?
Medium
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Low (0)
Medium (1)
High (0)
Unknown (0)
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- A study assessing the Air Pollution Tolerance Index (APTI) values of nine tropical tree species found that Alstonia scholaris was intermediately tolerant towards air pollution. [1]
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17. How would you characterise the soil pollution tolerance of this species?
High
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Low (0)
Medium (0)
High (1)
Unknown (0)
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18. Does this species have specific soil ph requirements?
Yes
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Yes (1)
No (0)
Unknown (0)
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19. Does this species have specialised habitat requirements?
No
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Yes (0)
No (1)
Unknown (0)
- Grows in moist and well-drained or fertile loamy soils. Wild trees in Kepong Botanic Gardens, Selangor, tolerated wet areas.
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- Grows in moist and well-drained or fertile loamy soils. Wild trees in Kepong Botanic Gardens, Selangor, tolerated wet areas. [1]
20. Does this species occur/survive in habitats prone to saltwater intrusion?
No
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Yes (0)
No (1)
Unknown (0)
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- Grows in primary and secondary forests, swamps, and on hills, in loam or sandy soils. [1]
21. Does this species occur/survive at locations that experience high temperatures?
Yes
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Yes (1)
No (0)
Unknown (0)
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22. Can this species tolerate inundation for >1 month?
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23. Can this species tolerate water absence for >1 month?
Yes
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Yes (1)
No (0)
Unknown (0)
- Specimens at Kepong Botanic Gardens, Selangor, did well during dry spells lasting three weeks. However, its growth form might be affected if water absence is prolonged.
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24. Can this species tolerate storm conditions (e.g., strong winds)?
No
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Yes (0)
No (1)
Unknown (0)
- It has a large canopy and brittle branches. Tends to have co-dominant stems, which predisposes branches to failure. They should be pruned back while the tree is young.
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25. Does this species have specific humidity requirements?
No
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Yes (0)
No (1)
Unknown (0)
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26. Is this species highly prone to predation, parasitism, and/or disease?
No
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Yes (0)
No (1)
Unknown (0)
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- Moderately prone to powder-post beetle attacks. However, it is not an inherent problem of the species and could be due to being planted in a new environment as there are no serious problems so far in its typical ones. No specific parasites or diseases. [1]
27. Please provide any additional information for this species in the context of climate change resilience and/or vulnerability.
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Insufficient Data
28. Does this species have biodiversity value (e.g., provides food or habitat, or increases landscape connectivity for urban fauna)?
Yes
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Yes (1)
No (0)
Unknown (0)
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- Pollinating bees and butterflies surround the tree when it is in flower. The flowers provide a rich source of nectar and are lightly scented, but the fully blooming tree emits a strong heady fragrance sometimes described as reminiscent of burnt sugar. [1]
29. Does this species have cultural value or provide products that are of some use to humans?
Yes
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Yes (1)
No (0)
Unknown (0)
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- The tree has an attractive pagoda crown and is widely planted for landscaping. The seeds, which contain hallucinogenic compounds, are used by Indian tribes as an aphrodisiac in rituals. The latex is used as glue by Australian Aborigines to stick feathers to the skin. Has medicinal uses: The bitter-tasting bark contains alkaloids and is a substitute for quinine to treat malaria. The leaves are a remedy against beriberi. Traditionally used as an astringent against bowel problems like abdominal pains, chronic diarrhoea and advanced dysentery and treats toothaches and snakebites. Harvested and sold commercially as 'Dita Bark'. Used for timber and to make products: The light wood is not durable but can make carvings, corks, matchsticks, packing boxes, and utensils. In Sri Lanka, it is used to make coffins. In Myanmar, it was used to make school blackboards, hence its specific epithet, "scholaris". Essential oil can be obtained from the flowers and a yellow dye from the bark. In Bangladesh, it is a semi-major bee plant in the apicultural industry as the flowers are a rich nectar source. [1]
Contributors: anonymous
Last Updated: 2023-03-15
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