Cereus caesius J.Forbes species synonym Piptanthocereus sericifer F.Ritter species synonym Piptanthocereus obtusus (Haw.) F.Ritter species synonym Cereus fernambucensis subsp. fernambucensis subspecies accepted Cereus fernambuscensis subsp. sericifer (Ritter) N.P.Taylor & Zappi subspecies synonym Cereus laetus Salm-Dyck species heterotypic synonym Cereus pseudocaesius Werderm. species synonym Cereus variabilis Pfeiff. species heterotypic synonym Cereus sericifer (F.Ritter) P.J.Braun species synonym Cereus salm-dyckianus Salm-Dyck species heterotypic synonym Cereus quadrangularis Haw. species heterotypic synonym Cereus prismatiformis Pfeiff. species synonym Cereus obtusus Haw. species heterotypic synonym Cereus neotetragonus Backeb. species synonym Cereus laetevirens Salm-Dyck species heterotypic synonym Cereus hexangularis Pfeiff. species synonym Cereus fernambucensis subsp. sericifer (F.Ritter) N.P.Taylor & Zappi subspecies accepted Cereus cognatus Pfeiff. species synonym Cereus caesius Salm-Dyck ex Pfeiff. species synonym Cereus brandii Salm-Dyck species synonym Cereus affinis Pfeiff. species synonym Cereus caesius Salm-Dyck species homotypic synonym Cereus glaucus Pfeiff. species synonym Cereus variabilis var. glaucescens Salm-Dyck ex Walp. variety synonym Cereus variabilis var. micracanthus Salm-Dyck ex Walp. variety synonym Cereus fernambuscensis subsp. fernambuscensis subspecies synonym Cereus variabilis var. obtusus Walp. variety synonym Cactus pentagonus Vell. species synonym Cereus glaucus var. speciosus Pfeiff. variety synonym Cactus undulosus Kostel. species synonym Cereus variabilis var. laetevirens Salm-Dyck ex Walp. variety synonym Cereus variabilis var. salm-dyckianus Walp. variety synonym Cereus trigonus Pfeiff. species heterotypic synonym Cactus pitajaya Jacq. species synonym Cereus laetevirens var. caesius C.F.Först. variety synonym Cereus variabilis var. glaucescens Salm-Dyck variety homotypic synonym Cereus variabilis var. micracanthus Salm-Dyck variety homotypic synonym Cereus variabilis var. laetevirens Salm-Dyck variety homotypic synonym |