CR

Chionanthus fluminensis

Unknown

Overview

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

Chionanthus fluminensis faces severe population decline due to extensive deforestation and urban expansion throughout its native Atlantic Forest range in southeastern Brazil. The species' extremely restricted distribution makes it particularly vulnerable to habitat fragmentation, with remaining populations isolated in small forest patches. Agricultural conversion and infrastructure development continue to reduce available habitat, while the species' specialized ecological requirements limit its ability to adapt to degraded environments.

Threat summary

Habitat

This species is endemic to the Atlantic Forest (Mata Atlântica) of southeastern Brazil, occurring in humid montane and submontane forests. It typically grows in well-drained soils along forest edges and clearings within the highly threatened Atlantic Forest biome.

Other threatened species in OLEACEAE

VU

Priogymnanthus colombianus

Declining
EN

Noronhia clarinerva

Declining
EN

Noronhia armandiana

Declining
VU

Noronhia coriacea

Declining

Frequently asked questions

Why is Chionanthus fluminensis classified as Critically Endangered?
Chionanthus fluminensis 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. Chionanthus fluminensis faces severe population decline due to extensive deforestation and urban expansion throughout its native Atlantic Forest range in southeastern Brazil. The species' extremely restricted distribution makes it particularly vulnerable to habitat fragmentation, with remaining populations isolated in small forest patches. Agricultural conversion and infrastructure development continue to reduce available habitat, while the species' specialized ecological requirements limit its ability to adapt to degraded environments.
Where does Chionanthus fluminensis live?
Chionanthus fluminensis 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 Chionanthus fluminensis?
The main threats to Chionanthus fluminensis 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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