hora
ENEndangered

hora

Dipterocarpus zeylanicus

Dipterocarpus zeylanicus, commonly known as හොර - Hora in Sinhalese and සරල - Sarala or කිරිපලු - Kiripalu, is a species of Dipterocarpus that is endemic to Sri Lanka. A closely related Indian species is Dipterocarpus turbinatus.

3

Countries

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Dipterocarpus_zeylanicus

01Classification

Taxonomy & Classification

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Malvales

Family

Dipterocarpaceae

Genus

Dipterocarpus

hora belongs to the family Dipterocarpaceae, order Malvales, within the Magnoliopsida class.

02Description

Species Profile

Dipterocarpus zeylanicus, commonly known as හොර - Hora in Sinhalese and සරල - Sarala or කිරිපලු - Kiripalu, is a species of Dipterocarpus that is endemic to Sri Lanka. A closely related Indian species is Dipterocarpus turbinatus. The Sri Lankan tree is a large tree that grows up to 40–45 m (131–148 ft) tall and 4–6 m (13–20 ft) in circumference. The bark is light pinkish brown or light yellowish brown. Leaves are big and oval, 5 to 8 inches long. The sharp-edged leaves are covered with silver hairs. Flowers bloom in April and seeds have two wings to spread from wind. The bark contains considerable amounts of gray colour oleoresin. D. zeylanicus can be found in moist low country like Ratnapura, Kaluthara, Galle and Matara Districts and also in the Sinharaja rain forest. The tallest trees...

Dipterocarpus zeylanicus faces severe population decline primarily due to extensive deforestation and habitat conversion for agriculture, urban development, and logging activities across its native range in Sri Lanka. The species' limited distribution and slow growth rate make it particularly vulnerable to ongoing habitat fragmentation and degradation.

Key Facts

IUCN StatusEndangered (EN)
GroupPlants
04Threats

Threats

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IUCN Red List: Endangered

Dipterocarpus zeylanicus faces severe population decline primarily due to extensive deforestation and habitat conversion for agriculture, urban development, and logging activities across its native range in Sri Lanka. The species' limited distribution and slow growth rate make it particularly vulnerable to ongoing habitat fragmentation and degradation.

Agricultural expansion

HighOngoing

Deforestation and logging

HighOngoing

Urban development and infrastructure

HighOngoing

Habitat fragmentation

MediumOngoing

Limited population size and distribution

MediumOngoing
06Range

Found in 3 Countries

Community

Community Sightings

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07Sources

Sources & Attribution

How to Cite

IUCN: IUCN (2025). The IUCN Red List of Threatened Species. Version 2025-1. Available at: https://www.iucnredlist.org. doi:10.2305/IUCN.UK.2025-1.RLTS

GBIF: GBIF.org (2025). GBIF Home Page. Available at: https://www.gbif.org

This page: SpeciesRadar (2025). hora (Dipterocarpus zeylanicus). SpeciesRadar: Intelligence for Earth's Biodiversity. Available at: https://speciesradar.org/species/hora

Full citation guide & data usage terms