Thesium subsucculentum
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Thesium subsucculentum faces severe threats from agricultural expansion and urban development across its extremely limited range in the Western Cape of South Africa. The species' specialized parasitic relationship with specific host plants makes it particularly vulnerable to habitat fragmentation, as both the species and its hosts require intact fynbos ecosystems. Invasive alien plant species further degrade remaining habitat patches, while climate change threatens the delicate moisture balance required for this succulent parasitic plant's survival.
Habitat
This species is endemic to the fynbos vegetation of the Western Cape, South Africa, where it grows as a root parasite in sandy soils of coastal and inland shrublands. It requires specific host plants within the diverse fynbos ecosystem and is adapted to the Mediterranean climate with winter rainfall and dry summers.
