CR

Arenaria bolosii

Declining

Overview

Arenaria grandiflora is a species of plant in the family Caryophyllaceae. It is found in central and southern Europe, and north-western Africa. It has also been introduced to Germany.

Arenaria bolosii faces severe threats from its extremely restricted range in the Pyrenees, where it occupies only a few high-altitude locations. The species is particularly vulnerable to climate change as warming temperatures force alpine vegetation zones upward, potentially eliminating suitable habitat. Human activities including hiking, mountaineering, and infrastructure development in its limited range pose additional pressures on the remaining populations.

Threat summary

Habitat

This endemic plant species inhabits rocky crevices and scree slopes in high-altitude alpine environments of the Pyrenees mountains. It typically grows in calcareous substrates at elevations above 2,000 meters, where it has adapted to harsh conditions including intense UV radiation, temperature fluctuations, and short growing seasons.

Conservation measures underway

Site/area protectionSpecies reintroductionEx-situ conservationLegislation

Other threatened species in CARYOPHYLLACEAE

Schiedea diffusaCR

Schiedea diffusa

Declining
Schiedea kaalaeCR

Schiedea kaalae

Declining
VU

Pycnophyllum spathulatum

Unknown
VU

Silene aristidis

Unknown

Frequently asked questions

Why is Arenaria bolosii classified as Critically Endangered?
Arenaria bolosii 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. Arenaria bolosii faces severe threats from its extremely restricted range in the Pyrenees, where it occupies only a few high-altitude locations. The species is particularly vulnerable to climate change as warming temperatures force alpine vegetation zones upward, potentially eliminating suitable habitat. Human activities including hiking, mountaineering, and infrastructure development in its limited range pose additional pressures on the remaining populations.
Where does Arenaria bolosii live?
Arenaria bolosii 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 Arenaria bolosii?
The main threats to Arenaria bolosii 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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