Ferocactus cylindraceus (Engelm.) OrcuttLCLeast ConcernCommon nameCalifornia barrel cactusGenusFerocactusFamilyCactaceae456 431 observations
Ferocactus glaucescens (DC.) Britton & RoseLCLeast ConcernCommon nameBlue BarrelGenusFerocactusFamilyCactaceae250 195 observations
Ferocactus haematacanthus (Monv. ex Salm-Dyck) Bravo ex Backeb. & F.M.KnuthENEndangeredGenusFerocactusFamilyCactaceae17 14 observations
Ferocactus herrerae J.G.OrtegaVUVulnerableCommon nameFishhook Barrel CactusGenusFerocactusFamilyCactaceae284 235 observations
Ferocactus macrodiscus (Mart.) Britton & RoseVUVulnerableGenusFerocactusFamilyCactaceae49 45 observations
Ferocactus peninsulae (A.A.Weber) Britton & RoseLCLeast ConcernGenusFerocactusFamilyCactaceae23 18 observations
Ferocactus viridescens (Nutt. ex Torr. & A.Gray) Britton & RoseLCLeast ConcernCommon nameSan Diego barrelcactusGenusFerocactusFamilyCactaceae2 2 observations
Ferocactus wislizeni (Engelm.) Britton & RoseVUVulnerableCommon nameCandy barrelcactusGenusFerocactusFamilyCactaceae62 54 observations
