CR

Glycosmis crassifolia

Unknown

Overview

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

Glycosmis crassifolia faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range in Southeast Asia. The species' restricted distribution makes it particularly vulnerable to localized habitat destruction, while collection pressure for traditional medicinal uses has further reduced wild populations. Climate change poses an additional threat by altering the specific microhabitat conditions this endemic citrus relative requires for survival.

Threat summary

Habitat

Glycosmis crassifolia inhabits tropical lowland and montane forests, typically found in understory environments with high humidity and filtered sunlight. The species occurs in both primary and secondary forest formations, showing preference for areas with rich, well-drained soils at elevations ranging from sea level to approximately 1,000 meters.

Other threatened species in Rutaceae

Zanthoxylum ekmaniiCR

Zanthoxylum ekmanii

Unknown
CR

Ayua dumosa

Zanthoxylum dumosum

Unknown
CR

Zanthoxylum bissei

Unknown
VU

Melicope macrocarpa

Unknown

Frequently asked questions

Why is Glycosmis crassifolia classified as Critically Endangered?
Glycosmis crassifolia is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Glycosmis crassifolia faces severe population decline primarily due to extensive deforestation and habitat conversion for agricultural expansion across its limited range in Southeast Asia. The species' restricted distribution makes it particularly vulnerable to localized habitat destruction, while collection pressure for traditional medicinal uses has further reduced wild populations. Climate change poses an additional threat by altering the specific microhabitat conditions this endemic citrus relative requires for survival.
Where does Glycosmis crassifolia live?
Glycosmis crassifolia 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 Glycosmis crassifolia?
The main threats to Glycosmis crassifolia 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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