Species: ~ 17.
Geography: Southwestern USA, Baja California Peninsula, northern Mexico.
- Grusonia aggeria (Ralston & Hilsenbeck) E. F. Anderson 1999 (Chihuahuan Desert Texas, Coahuila Mexico)
= Opuntia aggeria Ralston & Hilsenbeck 1989
- Grusonia agglomerata (A. Berger) E. F. Anderson 1999 (Coahuila Mexico)
= Opuntia agglomerata A. Berger 1929
= Corynopuntia agglomerata (A. Berger) F. M. Knuth 1935
- Grusonia bradtiana (J. M .Colter) Britton & Rose 1919 (Coahuila Mexico)
= ...
- Grusonia bulbispina (Engelmann) H. Robinson 1973 (Coahuila, Durango, Zacatecas, Mexico)
= ...
- Grusonia clavata (Engelmann) H. Robinson 1973 (Great Plains USA, northern central Mexico)
= ...
- Grusonia dumetorum (A. Berger) E. F. Anderson 1999 (Tamaulipas Mexico)
= ...
- Grusonia emoryi (Engelmann) Pincava 1999, (Texas, New Mexico, Arizona, Mexico)
= Grusonia stanlyi (Engelmann) H. Robinson 1973
= Corynopuntia stanlyi (Engelmann) F. M. Knuth
= Opuntia emoryi Engelmann 1856
= Opuntia stanlyi Engelmann 1848
=
- Grusonia grahamii (Engelmann) H. Robinson 1973 (Chihuahuan Desert southern New Mexico USA, Chihuahua, Durango, Mexico)
= ...
- Grusonia invicta (T. Brandegee) E. F. Anderson 1999, central Baja California Peninsula, Mexico)
= Opuntia invicta T. Brandegee 1889
= Corynopuntia invicta (T. Brandegee) F. M. Knuth 1935
- Grusonia kunzei (Rose) Pinkava 1999 (Sonora Desert southwest Arizona USA; northern Baja California, Sonora, Mexico)
= ...
- Grusonia marenae (S. H. Parsons) E. F. Anderson 1999 (Sonora, Mexico)
= ...
- Grusonia moelleri (A. Berger ex Y. Wright) E. F. Anderson 1999 (Coahuila, Mexico)
= ...
- Grusonia parishii (Orcutt) Pinkava 1999 (Mojave, Sonora, California, Nevada, Arizona, USA)
= ...
- Grusonia pulchella (Engelmann) H. Robinson 1973 (Mojave, California, Nevada, Utha, USA)
= ...
- Grusonia reflexispina (Wiggins & Rollins) E. F. Anderson 1999 (Sonora, Mexico)
= ...
- Grusonia scottii (Engelmann) H. Robinson 1973 (Chihuahuan Desert Texas, Coahuila Mexico)
= ...
- Grusonia vilis (Rose) H. Robinson 1973 (Zacatecas, Coahuila, Mexico)
= ...
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