Publication: J. Arizona Acad. Sci. 33(2): 150. 2001 Remarks: parents: O. acanthocarpa Engelm. & J. M. Bigel. X O. bigelovii Engelm.
Origin and Habitat
Paradise Valley, 650 m, ca. 4 km south of Pinnacle Peak, Maricopa County (Arizona, Southwestern U.S.A., Northern America)
