VU

Cosmostigma hainanense

Unknown

Overview

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

Cosmostigma hainanense faces severe pressure from rapid deforestation and agricultural expansion across Hainan Island, where its specialized climbing habitat requirements make it particularly vulnerable to forest fragmentation. Urban development and infrastructure projects have eliminated significant portions of its native forest ecosystems, while the species' limited dispersal ability as a woody vine restricts its capacity to colonize new suitable areas.

Threat summary

Habitat

This endemic climbing shrub inhabits tropical and subtropical forests of Hainan Island, typically growing in secondary forest edges and disturbed woodland areas where it can access adequate light while maintaining the structural support needed for its vining growth habit.

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 Cosmostigma hainanense classified as Vulnerable?
Cosmostigma hainanense 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. Cosmostigma hainanense faces severe pressure from rapid deforestation and agricultural expansion across Hainan Island, where its specialized climbing habitat requirements make it particularly vulnerable to forest fragmentation. Urban development and infrastructure projects have eliminated significant portions of its native forest ecosystems, while the species' limited dispersal ability as a woody vine restricts its capacity to colonize new suitable areas.
Where does Cosmostigma hainanense live?
Cosmostigma hainanense 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 Cosmostigma hainanense?
The main threats to Cosmostigma hainanense 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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