Cylindropuntia alcahes var. mcgillii Rebman in J. Arizona-Nevada Acad. Sci. 33: 150. 2001
Cylindropuntia alcahes var. mcgillii in J. Arizona-Nevada Acad. Sci. 33: 150. 2001
is basionym for Cylindropuntia alcahes subsp. mcgillii in Madroño 66: 93. 2019