Endemic to a small area of south-central Utah. The species is restricted to a specific, alkaline soil type and is seriously threatened by cactus collectors and heavy grazing by cattle and wildlife, as well as disturbances from recreational use, off-road use, and possible coal and oil exploration.
This species is sought by both hobby and commercial cactus collectors--it has been listed under CITES since 1983, and so is illegal to trade or sell internationally as well as within the United States. (USFWS 2002)
Grazing and mining development could
Known from four populations, totaling about 20,000 individuals. Populations are widely separated on parcels of habitat between 2.4 acres and 48 acres in size. (USFWS 1998a)
This species is managed by the Bureau of Land Management and Capitol Reef National Park.
It is difficult to monitor the species' populations because individuals are widely scattered throughout the landscape.
Determine the taxonomic relationship between P. winkleri and D. despainii. (USFWS 1998)
Develop a propagation protocol.
Be the first to post an update!