Opuntia echinocarpa var. parkeri J.M.Coult. in Contr. U.S. Natl. Herb. 3(7): 446. 1896
Opuntia echinocarpa var. parkeri in Contr. U.S. Natl. Herb. 3(7): 446. 1896
is basionym for Cylindropuntia californica subsp. parkeri in Cactaceae Syst. Init. 16: 16. 2003
is basionym for Opuntia californica var. parkeri in Haseltonia 4: 103. 1996
is basionym for Opuntia parkeri in Contr. U.S. Natl. Herb. 3: 446. 1896
is basionym for Cylindropuntia californica var. parkeri in J. Arizona-Nevada Acad. Sci. 33: 150. 2001