| Cleistocactus acanthurus (Vaupel) D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus acanthurus subsp. canetensis (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus acanthurus var. faustianus (Backeb.) Ostolaza | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus acanthurus var. pullatus (Rauh & Backeb.) Ostolaza | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus acanthurus subsp. pullatus (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus angosturensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus anguinus (Gürke) Britton & Rose | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus anquinus Gürke | 
		Unresolved | 
		  | 
		TRO | 
	
	
		| Cleistocactus areolatus Riccob. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus areolatus var. herzogianus (Backeb.) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus aureispinus Fric | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus aureispinus (F.Ritter) D.R.Hunt [Illegitimate] | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus aureus (Meyen) A.Weber | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus ayopayanus Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus azerensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii (Lem.) Lem. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii subsp. anguinus (Gürke) P.J.Braun & Esteves | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii subsp. chacoanus (F.Ritter) P.J.Braun & Esteves | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii var. colubrinus (Otto ex C.F.Först.) Riccob. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii subsp. croceiflorus (F.Ritter) P.J.Braun & Esteves | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii var. flavispina Riccob. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii var. grossei (Weing.) W.T.Marshall | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii subsp. horstii (P.J.Braun) N.P.Taylor | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii var. paraguariensis (F.Ritter) P.J.Braun & Esteves | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus baumannii subsp. santacruzensis (Backeb.) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus brevispinus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus brookeae Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus brookeae var. flavispinus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus brookeae subsp. vulpis-cauda (F.Ritter & Cullman) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus bruneispinus Backeb. | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus buchtienii Backeb. ex Backeb. & F.M.Knuth | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus buchtienii var. flavispinus Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus candelilla Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus candelilla subsp. piraymirensis (Cárdenas) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus candelilla var. pojoensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus capadalensis F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus celesianus (Lem. ex Salm-Dyck) A. Weber | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Cleistocactus celsianus (Cels ex Salm-Dyck) A.Weber | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus chacoanus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus chacoanus var. santacruzensis F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus chotaensis A.Weber | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus chrysocephalus (F.Ritter) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus clavicaulis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × clavispinus (Rauh & Backeb.) Ostolaza | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus colademononis (Diers & Krahn) Mottram | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus colubrinus (Otto ex Foerster) Lem. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus colubrinus var. grossei (Weing.) Borg | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus colubrinus var. smaragdiflorus (F.A.C.Weber) Rol.-Goss. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus compactus Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus crassicaulis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus crassicaulis var. paucispinus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × crassiserpens Rauh & Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × crassiserpens Rauh & Backeberg (pro sp.) | 
		Unresolved | 
		  | 
		TRO | 
	
	
		| Cleistocactus croceiflorus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus dependens Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus erectispinus (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus erigens (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus ferrarii R.Kiesling | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fieldianus (Britton & Rose) D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fieldianus subsp. samnensis (F.Ritter) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fieldianus subsp. tessellatus (Akers & Buining) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fieldianus subsp. tessellatus (Akers & Buining) Ostolaza | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus flavispinus (K.Schum.) Backeb. | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fossulatus Mottram | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus fossulatus Mottram | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Cleistocactus fusiflorus Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus glaucus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus glaucus var. plurispinus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus granditessellatus (Rauh & Backeb.) Leuenb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus granjaensis F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus grossei (Weing.) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus herzogianus Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hildegardiae F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hoffmannii G.J.Charles | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus horstii P.J.Braun | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus humboldtii (Kunth) A.Weber | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hyalacanthus (K.Schum.) Rol.-Goss. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hyalacanthus Backeb. [Illegitimate] | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hyalacanthus subsp. tarijensis (Cárdenas) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × hystrix (Rauh & Backeb.) Ostolaza | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus hystrix (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		TRO | 
	
	
		| Cleistocactus ianthinus Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus icosagonus (Kunth) A.Weber | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus jajoanus (Backeb.) G.J.Charles | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus jugatiflorus Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus jujuyensis (Backeb.) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus jujuyensis var. fulvus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus kerberi (K.Schum.) Rol.-Goss. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus lanatus (Kunth) A.Weber | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × laniceps (K.Schum.) Rol.-Goss. | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus laniceps (K. Schum.) Gosselin | 
		Accepted | 
		  | 
		TRO | 
	
	
		| Cleistocactus laniceps var. plurispinus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus leonensis Madsen | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus longiserpens Leuenb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus luribayensis Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus mendozae Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus micropetalus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus monvilleanus (A.Weber ex K.Schum.) A.Weber | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus morawetzianus Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus morawetzianus var. pycnacanthus Rauh & Backeb. | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus muyurinensis F.Ritter | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus neoroezlii (F.Ritter) Buxb. [Invalid] | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus nivosus Borg [Unplaced] | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus orthogonus Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus pachycladus (Rauh & Backeb.) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus palhuayensis F.Ritter & Shahori | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus palhuayensis var. camachoensis F.Ritter & Shahori | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus paraguariensis F.Ritter | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus parapetiensis Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus parviflorus (K.Schum.) Rol.-Goss. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus parviflorus var. comarapanus F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus parviflorus var. herzogianus (Backeb.) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus parvisetus (Pfeiff.) A.Weber | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus peculiaris (Rauh & Backeb.) Ostolaza | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus peduliaris (Rauh & Backeb.) Ostolaza | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Cleistocactus piraymirensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus plagiostoma (Vaupel) D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus pojoensis (Cárdenas) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus pungens F.Ritter | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus pycnacanthus (Rauh & Backeb.) Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus reae Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus ressinianus Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus rhodacanthus Lem. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus ritteri Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus roezlii (Haage ex K.Schum.) Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × rojoi Cárdenas | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus roseiflorus (Buining) G.D.Rowley | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus samaipatanus (Cárdenas) D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus samaipatensis (Cárdenas) D.R. Hunt | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Cleistocactus santacruzensis Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus sepium (Kunth) A.Weber | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus serpens (Kunth) A.Weber | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus sextonianus (Backeb.) D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus smaragdiflorus (F.A.C.Weber) Britton & Rose | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus smaragdiflorus var. flavispinus Borg | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus smaragdiflorus var. gracilior Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus smaragdiflorus f. rojoi (Cárdenas) F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus straussii (Heese) Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus straussii var. fricii (Dörfl.) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus straussii var. jujuyensis Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus sucrensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus sulcifer (Rauh & Backeb.) Leuenb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tarijensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tenuiserpens Rauh & Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tominensis (Weing.) Backeb. | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tominensis subsp. micropetalus (F.Ritter) Mottram | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tupizensis (Vaupel) Backeb. | 
		Unresolved | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus tupizensis (Vaupel) Backeb. & F.M. Knuth | 
		Synonym | 
		  | 
		TRO | 
	
	
		| Cleistocactus tupizensis var. sucrensis (Cárdenas) Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus vallegrandensis Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus variispinus F.Ritter | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus villaazulensis F.Ritter | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × villamontesii Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus × villamontesii var. longiflorior Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus viridialabastri Cárdenas | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus viridiflorus Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus vulpis-cauda F.Ritter & Cullman | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus wendlandiorum Backeb. | 
		Synonym | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus winteri D.R.Hunt | 
		Accepted | 
		  | 
		WCSP (in review) | 
	
	
		| Cleistocactus xylorhizus (F.Ritter) Ostolaza | 
		Accepted | 
		  | 
		WCSP (in review) |