Peniocereus occidentalis
Overview
A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.
Peniocereus occidentalis faces severe population decline due to habitat destruction from urban development and agricultural expansion across its limited range in northwestern Mexico. The species' extremely restricted distribution makes it particularly vulnerable to localized threats, while illegal collection for the horticultural trade has further reduced wild populations. Climate change poses an additional threat through altered precipitation patterns that could disrupt the delicate desert ecosystem balance this cactus depends upon.
Habitat
This rare cactus inhabits arid desert scrublands and rocky slopes in the Sonoran Desert region of northwestern Mexico. It typically grows in well-drained soils among desert shrubs and requires specific microhabitat conditions with partial shade and protection from extreme temperatures.