Opuntia echinocarpa Engelm. & J.M.Bigelow in Proc. Amer. Acad. Arts 3: 305-306. 1856
Opuntia echinocarpa in Proc. Amer. Acad. Arts 3: 305-306. 1856
is basionym for Cylindropuntia echinocarpa, Kaktus-ABC: 124. 1936 ["1935"]
is basionym for Grusonia echinocarpa in Tephrocactus Study Group 12(3): 44. 2006