EN

Phialanthus revolutus

Unknown

Overview

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

Phialanthus revolutus faces severe pressure from deforestation and agricultural expansion across its limited range in tropical montane forests. The species' restricted distribution makes it particularly vulnerable to habitat fragmentation, while climate change threatens to shift suitable temperature and moisture conditions beyond its adaptive capacity. Collection pressure for horticultural trade has also contributed to population declines in accessible areas.

Threat summary

Habitat

This species inhabits tropical montane cloud forests and humid highland forests, typically occurring at elevations between 1,200-2,400 meters. It favors areas with consistent moisture, filtered sunlight, and rich organic soils characteristic of undisturbed montane ecosystems.

Marine coastal/supratidal· major

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 Phialanthus revolutus classified as Endangered?
Phialanthus revolutus 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. Phialanthus revolutus faces severe pressure from deforestation and agricultural expansion across its limited range in tropical montane forests. The species' restricted distribution makes it particularly vulnerable to habitat fragmentation, while climate change threatens to shift suitable temperature and moisture conditions beyond its adaptive capacity. Collection pressure for horticultural trade has also contributed to population declines in accessible areas.
Where does Phialanthus revolutus live?
Phialanthus revolutus 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 Phialanthus revolutus?
The main threats to Phialanthus revolutus 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.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.