VU

Alstonia henryi

Unknown

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Alstonia henryi faces severe pressure from deforestation and habitat conversion throughout its range in Southeast Asia. The species is particularly vulnerable to logging operations targeting its preferred lowland and hill forest habitats for timber extraction and agricultural expansion. Urban development and infrastructure projects have further fragmented remaining forest patches, isolating populations and reducing genetic diversity.

Threat summary

Habitat

Alstonia henryi inhabits tropical lowland and hill forests, typically found at elevations up to 800 meters. The species prefers primary and secondary forest environments with well-drained soils and partial canopy cover.

Other threatened species in APOCYNACEAE

EN

Aspidosperma salgadense

Declining
EN

Rauvolfia steyermarkii

Declining
VU

Ceropegia rhynchantha

Declining
VU

Ceropegia loranthiflora

Unknown

Frequently asked questions

Why is Alstonia henryi classified as Vulnerable?
Alstonia henryi is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Alstonia henryi faces severe pressure from deforestation and habitat conversion throughout its range in Southeast Asia. The species is particularly vulnerable to logging operations targeting its preferred lowland and hill forest habitats for timber extraction and agricultural expansion. Urban development and infrastructure projects have further fragmented remaining forest patches, isolating populations and reducing genetic diversity.
Where does Alstonia henryi live?
Alstonia henryi occurs in across multiple regions. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Alstonia henryi?
The main threats to Alstonia henryi are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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