CR

Rudgea pachyphylla

Declining

Overview

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

Rudgea pachyphylla faces severe threats from ongoing deforestation and habitat fragmentation within its extremely limited range in the Atlantic Forest of southeastern Brazil. Agricultural expansion, particularly cattle ranching and crop cultivation, continues to reduce the remaining forest patches where this endemic coffee family shrub survives. Urban development pressures and infrastructure projects further fragment the already restricted habitat, isolating small populations and reducing genetic diversity.

Threat summary

Habitat

This endemic shrub inhabits the understory of montane Atlantic Forest remnants in southeastern Brazil, typically found in humid, shaded environments between 800-1,200 meters elevation. It requires the specific microclimate conditions of intact forest ecosystems, including consistent moisture levels and protection from direct sunlight.

Other threatened species in RUBIACEAE

EN

Arachnothryx tacanensis

Declining
CR

Arachnothryx tenorioi

Unknown
VU

Aidia abeidii

Unknown
EN

Arachnothryx tuxtlensis

Declining

Frequently asked questions

Why is Rudgea pachyphylla classified as Critically Endangered?
Rudgea pachyphylla 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. Rudgea pachyphylla faces severe threats from ongoing deforestation and habitat fragmentation within its extremely limited range in the Atlantic Forest of southeastern Brazil. Agricultural expansion, particularly cattle ranching and crop cultivation, continues to reduce the remaining forest patches where this endemic coffee family shrub survives. Urban development pressures and infrastructure projects further fragment the already restricted habitat, isolating small populations and reducing genetic diversity.
Where does Rudgea pachyphylla live?
Rudgea pachyphylla 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 Rudgea pachyphylla?
The main threats to Rudgea pachyphylla 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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