Occurs mainly in southeastern Arizona in the Huachuca Mountains and the Santa Rita Mountains and Sonora, Mexico. Few recent collections but data for the last 20 years suggest there about 30 sites.
Because this species is more widespread than once thought, threats are relatively small.
The one known Santa Rita population likely contains thousands of plants on many acres on remote wilderness land. (USFWS 1996)
Surveys since 1991 have discovered numerous new populations at sites in the Huachuca Mountains, Sierra Azula, and Santa Rita Mountains. The U.S. Fish and Wildlife Service states that this species is more widespread than it was thought to be when it was listed for federal candidate status, and removed it from candidate status in 1996. (USFWS 1996; Gries 1992)
Be the first to post an update!