CR

Flowerless Clusterhead

Sorocephalus crassifolius

Unknown

Overview

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

Sorocephalus crassifolius faces severe threats from urban expansion and agricultural conversion within its extremely limited range in the Western Cape of South Africa. The species is particularly vulnerable to invasive alien plant species that alter fire regimes and compete for resources in its fynbos habitat. Climate change poses an additional threat through altered precipitation patterns and increased fire frequency, which could push this already critically endangered species toward extinction.

Threat summary

Habitat

This species is endemic to the fynbos vegetation of the Western Cape, South Africa, where it grows in sandy soils on coastal plains and lower mountain slopes. It requires the Mediterranean-type climate conditions typical of the Cape Floral Kingdom, with winter rainfall and dry summers.

Caves and subterranean habitats· major

Conservation measures underway

Ex-situ conservation

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Frequently asked questions

Why is Flowerless Clusterhead classified as Critically Endangered?
Flowerless Clusterhead 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. Sorocephalus crassifolius faces severe threats from urban expansion and agricultural conversion within its extremely limited range in the Western Cape of South Africa. The species is particularly vulnerable to invasive alien plant species that alter fire regimes and compete for resources in its fynbos habitat. Climate change poses an additional threat through altered precipitation patterns and increased fire frequency, which could push this already critically endangered species toward extinction.
Where does Flowerless Clusterhead live?
Flowerless Clusterhead occurs in 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 Flowerless Clusterhead?
The main threats to Flowerless Clusterhead 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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