Horridocactus aconcaguensis (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus andicola F.Ritter |
Unresolved |
 |
WCSP (in review) |
Horridocactus armatus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus atroviridis (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus carrizalensis (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus choapensis (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus crispus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus curvispinus (Bertero ex Colla) Backeb. |
Synonym |
 |
TRO |
Horridocactus echinus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus engleri F. Ritter |
Synonym |
 |
TRO |
Horridocactus eriosyzoides F.Ritter |
Unresolved |
 |
WCSP (in review) |
Horridocactus garavantae F. Ritter |
Synonym |
 |
TRO |
Horridocactus geissei (Poselg. ex K.Schum.) Dölz |
Unresolved |
 |
WCSP (in review) |
Horridocactus grandiflorus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus heinrichianus Backeb. |
Synonym |
 |
TRO |
Horridocactus horridus (Colla) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus kesselringianus Dölz |
Unresolved |
 |
WCSP (in review) |
Horridocactus kunsei (C.F.Först.) F.Ritter |
Unresolved |
 |
WCSP (in review) |
Horridocactus lissocarpus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus marksianus (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |
Horridocactus nigricans (Dietr. ex K.Schum.) Backeb. & Dolz |
Unresolved |
 |
WCSP (in review) |
Horridocactus paucicostatus F. Ritter |
Synonym |
 |
TRO |
Horridocactus tuberisulcatus (Jacobi) Y.Itô |
Unresolved |
 |
WCSP (in review) |
Horridocactus vallenarensis (F.Ritter) Backeb. |
Unresolved |
 |
WCSP (in review) |