CR

Pentagonia peruviana

Unknown

Overview

Pentagonia spathicalyx is a species of flowering plant in the family Rubiaceae, native to western South America to north Brazil. It was first described by Karl Moritz Schumann in 1889.

Pentagonia peruviana faces severe threats from deforestation and habitat fragmentation in Peru's montane cloud forests, where mining activities and agricultural expansion have dramatically reduced suitable habitat. The species' extremely limited range makes it particularly vulnerable to localized disturbances, while climate change is altering the moisture regimes essential for the cloud forest ecosystems it depends upon.

Threat summary

Habitat

This species inhabits Peru's montane cloud forests, typically found in humid, moss-rich environments at elevations between 1,500-2,500 meters. These ecosystems are characterized by persistent cloud cover and high humidity levels that support diverse epiphytic communities.

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 Pentagonia peruviana classified as Critically Endangered?
Pentagonia peruviana 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. Pentagonia peruviana faces severe threats from deforestation and habitat fragmentation in Peru's montane cloud forests, where mining activities and agricultural expansion have dramatically reduced suitable habitat. The species' extremely limited range makes it particularly vulnerable to localized disturbances, while climate change is altering the moisture regimes essential for the cloud forest ecosystems it depends upon.
Where does Pentagonia peruviana live?
Pentagonia peruviana 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 Pentagonia peruviana?
The main threats to Pentagonia peruviana 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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