VU

Aloe squarrosa

Unknown

Overview

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

Aloe squarrosa faces significant pressure from habitat degradation in Madagascar's unique succulent scrublands, where agricultural expansion and livestock grazing have fragmented its specialized rocky outcrop habitats. The species' extremely limited distribution makes it particularly vulnerable to localized disturbances, while collection for the horticultural trade poses an additional threat to remaining wild populations.

Threat summary

Habitat

Aloe squarrosa is endemic to the dry succulent scrublands of southern Madagascar, where it grows on rocky outcrops and limestone plateaus in areas receiving minimal annual rainfall. The species is adapted to extremely arid conditions and requires well-drained, mineral-rich soils typical of Madagascar's spiny forests and succulent woodland ecosystems.

Rocky areas· major

Other threatened species in ASPHODELACEAE

EN

Kniphofia hildebrandtii

Declining
CR

Aloe mangeaensis

Unknown
EN

Aloe alfredii

Unknown
EN

Aloe trinervis

Declining

Frequently asked questions

Why is Aloe squarrosa classified as Vulnerable?
Aloe squarrosa is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Aloe squarrosa faces significant pressure from habitat degradation in Madagascar's unique succulent scrublands, where agricultural expansion and livestock grazing have fragmented its specialized rocky outcrop habitats. The species' extremely limited distribution makes it particularly vulnerable to localized disturbances, while collection for the horticultural trade poses an additional threat to remaining wild populations.
Where does Aloe squarrosa live?
Aloe squarrosa 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 Aloe squarrosa?
The main threats to Aloe squarrosa 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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