EN

Wrightia siamensis

Declining

Overview

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

Wrightia siamensis faces severe population decline primarily due to extensive deforestation and habitat conversion throughout its native range in Thailand and neighboring regions. The species is heavily exploited for its valuable timber and traditional medicinal uses, leading to overexploitation of remaining populations. Urban expansion and agricultural development have fragmented its forest habitat, while illegal logging continues to target mature specimens for the wood trade.

Threat summary

Habitat

Wrightia siamensis naturally occurs in tropical deciduous forests and mixed deciduous woodlands across Thailand and parts of Southeast Asia. The species typically grows in well-drained soils of lowland and hill forests, often found along forest edges and in secondary growth areas.

Forest· majorForest - Subtropical/tropical dry· majorRocky areas· major

Conservation measures underway

Site/area protectionEx-situ conservation

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Frequently asked questions

Why is Wrightia siamensis classified as Endangered?
Wrightia siamensis is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Wrightia siamensis faces severe population decline primarily due to extensive deforestation and habitat conversion throughout its native range in Thailand and neighboring regions. The species is heavily exploited for its valuable timber and traditional medicinal uses, leading to overexploitation of remaining populations. Urban expansion and agricultural development have fragmented its forest habitat, while illegal logging continues to target mature specimens for the wood trade.
Where does Wrightia siamensis live?
Wrightia siamensis occurs in Thailand. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Wrightia siamensis?
The main threats to Wrightia siamensis 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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