CR

Mesembryanthemum tomentosum

Declining

Overview

Mesembryanthemum tomentosum, synonyms including Brownanthus pubescens, is a species of plant in the family Aizoaceae. It is native to the Cape Provinces and Namibia. Its natural habitats are dry savanna and rocky areas.

Mesembryanthemum tomentosum faces severe threats from urban development and agricultural expansion across its extremely limited range in the Western Cape of South Africa. The species' specialized habitat requirements make it particularly vulnerable to land conversion, while invasive alien plant species compete for resources in its fragmented coastal and inland populations. Climate change poses an additional threat through altered precipitation patterns that could disrupt the delicate moisture balance this succulent requires.

Threat summary

Habitat

This succulent species inhabits specialized coastal and inland habitats in the Western Cape region of South Africa, typically growing in sandy soils and rocky outcrops. It occurs in Mediterranean-climate vegetation types including fynbos and succulent karoo, where it has adapted to seasonal rainfall patterns and well-drained substrates.

Conservation measures underway

Site/area protectionEx-situ conservationLegislation

Frequently asked questions

Why is Mesembryanthemum tomentosum classified as Critically Endangered?
Mesembryanthemum tomentosum 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. Mesembryanthemum tomentosum faces severe threats from urban development and agricultural expansion across its extremely limited range in the Western Cape of South Africa. The species' specialized habitat requirements make it particularly vulnerable to land conversion, while invasive alien plant species compete for resources in its fragmented coastal and inland populations. Climate change poses an additional threat through altered precipitation patterns that could disrupt the delicate moisture balance this succulent requires.
Where does Mesembryanthemum tomentosum live?
Mesembryanthemum tomentosum occurs in Namibia, and South Africa. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Mesembryanthemum tomentosum?
The main threats to Mesembryanthemum tomentosum are 1.1, 11.1, 11.2, and 3.2. The full IUCN-classified threat record for this species is detailed on the species page.

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