Species: ~ 130,
Geography: Peru, Bolivia, Brazil, Paraguay, Uruguay, Argentina.
- Echinopsis adolfofriederichii G. Moser 1982 (southeastern Paraguay)
- Echinopsis ancistrophora Spegazzini 1905 (Cochabamba, Bolivia)
= Pseudolobivia ancistrophora (Spegazzini) Backeberg 1941
- Echinopsis angelesii (R. Kiesling) G. D. Rowley 1980 (Guachchipas province, Salta, Argentina)
= Trichocereus angelesii R. Kiesling 1978
- Echinopsis antezanae (Cárdenas) H. Friedrich & G. D. Rowley 1974 (El Cerado province, Oruro, Bolivia)
= Trichocereus antezanae Cárdenas 1953
= Helianthocereus antezanae (Cárdenas) Backeberg 1955
- Echinopsis arboricola (Kimnach) Mottram 1997 (southern Bolivia, northern Argentina)
= Trichocereus arboricola Kimnach 1990
- Echinopsis arebaloi Cárdenas 1953
- Echinopsis atacamensis (Philippi) H. Friedrich & G. D. Rowley 1974 (Chile)
= Cereus atacamensis Philippi 1860
= Trichocereus atacamensis (Philippi) W. T. Marshall & Bock 1941
= Helianthocereus atacamensis (Philippi) Backeberg 1955
= (?) Echinopsis formosissima Labouret 1855
= Leucostele rivierei Backeberg 1953
= Trichocereus rivierei (Backeberg) Krainz 1967
= Echinopsis rivierei (Backeberg) H. Friedrich & G. D. Rowley 1974
= Trichocereus eremophilus F. Ritter 1980
- Echinopsis atacamensis subsp. pasacana (F. A. C. Weber ex Rümpler) G. Navarro 1996 (Argentina, Bolivia)
= Pilocereus pasacana F. A. C. Weber ex Rümpler 1886
= Cereus pasacana (F. A. C. Weber ex Rümpler) F. A. C. Weber 1893
= Trichocereus pasacana (F. A. C. Weber ex Rümpler) Britton & Rose 1920
= Helianthocereus pasacana (F. A. C. Weber ex Rümpler) Backeberg 1959
= Echinopsis pasacana (F. A. C. Weber ex Rümpler) H. Friedrich & G. D. Rowley 1974
- Echinopsis aurea Britton et Rose 1922, golden cob, golden easter lily cactus (nothern Argentina)
= Lobivia aurea (Britton et Rose) Backeberg 1934
= Pseudolobivia aurea (Britton et Rose) Backeberg 1951
= Hymenorebutia aurea (Britton et Rose) F.Ritter 1980
- Echinopsis backebergia Werdermann ex Backeberg 1931 (Bolivia, Peru)
= Lobivia backebergia (Werdermann ex Backeberg) Backeberg 1935
= Echinopsis bodekeriana Harden 1936
= Lobivia bodekeriana (Harden) Boedeker 1936
= Lobivia wrightiana Backeberg 1937
= Echinopsis wrightiana (Backeberg) G. D. Rowley 1982
= Lobivia oxyalabastra Cárdenas & Rausch 1966
= Lobivia winteriana F. Ritter 1970
= Neolobivia winteriana (F. Ritter) F. Ritter 1981
= Lobivia zecheri Rausch 1971
= Echinopsis zecheri (Rausch) G. D. Rowley 1982
- Echinopsis baldiana Spegazzini 1905 (Catamarca, Argentina)
- Echinopsis bertramiana (Backeberg) H. Friedrich & G. D. Rowley 1974 (La Paz, Bolivia)
= Trichocereus bertramiana Backeberg 1935
= Helianthocereus bertramiana (Backeberg) Backeberg 1951
- Echinopsis boyuibensis F. Ritter 1965 (Santa Cruz, Bolivia)
= Pseudolobivia boyuibensis (F. Ritter) Backeberg 1966
- Echinopsis brasilensis Fric ex Pazout 1963 (southern Brazil)
- Echinopsis bridgesi Salm-Dyck 1850 (La Paz, Bolivia)
= Trichocereus bridgesi (Salm-Dyck) Britton & Rose 1920
= Trichocereus tenuispinus F. Ritter 1967
- Echinopsis bridgesi subsp. yungasensis (F. Ritter) P. J. Baun & Esteves 1895 (Coripata, Bolivia)
= Echinopsis yungasensis F. Ritter 1980
- Echinopsis bruchii (Britton & Rose) H. Friedrich & Glaetzle 1983 (northern Argentina)
= Lobivia bruchii Britton & Rose 1922
= Soherensia bruchii (Britton & Rose) Backeberg 1951
= Lobivia formosa subsp. bruchii (Britton & Rose) Rausch 1976
= Trichocereus bruchii (Britton & Rose) F. Ritter 1980
= Lobivia grandis Britton & Rose 1922
= Pseudolobivia grandis (Britton & Rose) Krainz 1946
= Soherensia grandis (Britton & Rose) Backeberg 1951
= Echinopsis grandis (Britton & Rose) H. Friedrich & G. D. Rowley 1974
= Lobivia formosa subsp. grandis (Britton & Rose) Rausch 1976
= Trichocereus grandis (Britton & Rose) F. Ritter 1980
= Soherensia ingens Backeberg 1951
= Echinopsis ingens (Backeberg) H. Friedrich & G. D. Rowley 1974
= Trichocereus ingens (Backeberg) F. Ritter 1980
- Echinopsis xcabrerae (R. Kiesling) G. D. Rowley 1974 (La Rioja, Argentina)
= Trichocereus cabrerae R. Kiesling 1976
~ E. strigosa x E. terscheckii
- Echinopsis caineana (Cárdenas) D. R. Hunt 1991 (Charcas province, Potosi, Bolivia)
= Lobivia caineana Cárdenas 1952
- Echinopsis cajasensis F. Ritter 1980 (Cajas, Mendez province, Bolivia)
- Echinopsis calliantholilacina Cárdenas 1965 (Oropeza province, Chuquisaca, Bolivia)
- Echinopsis callichroma Cárdenas 1965 (Tapacari province, Cochabamba, Bolivia)
= Pseudolobivia callichroma (Cárdenas) Backeberg 1966
- Echinopsis calochloraK. Schumann 1903 (Brazil)
= (?) Echinopsis grandiflora Linke 1857
- Echinopsis calochlora subsp. glaetzleana P. j. Braun & Esteves 1994 (Mato Grosso do Sul, Brazil)
- Echinopsis camarguensis (Cárdenas) H. Friedrich & G. D. Rowley 1974 (Cinti, Chuquisaca, Bolivia)
= Trichocereus camarguensis Cárdenas 1953
- Echinopsis candicans (Gillies ex Salm-Dyck) F. A. C. Weber ex D. R. Hunt 1987 (northern Argentina)
= Trichocereus candicans (Gillies ex Salm-Dyck) Britton & Rose 1920
= Trichocereus courantii (K. Schumann) Backeberg 1954
= Echinopsis courantii (K. Schumann) H. Friedrich & G. D. Rowley 1974
= Trichocereus neolamprochlorus Backeberg 1959
= Helianthocereus pseudocandicans Backeberg 1966 (non val. publ.)
= Trichocereus pseudocandicans (Backeberg) R. Kiesling 1976 (non val. publ.)
= Echinopsis pseudocandicans (Backeberg) H. Friedrich & Glaetzle 1983 (non val. publ.)
- Echinopsis cephalomacrostibas (Werdermann & Backeberg) H. Friedrich & G. D. Rowley 1974 (southern Peru)
= Cereus cephalomacrostibas Werdermann & Backeberg 1931
= Trichocereus cephalomacrostibas (Werdermann & Backeberg) Backeberg 1932
= Weberbauerocereus cephalomacrostibas (Werdermann & Backeberg) F. Ritter 1981
= Haageocereus cephalomacrostibas (Werdermann & Backeberg) P. V. Heath 1995
- Echinopsis cerdana Cárdenas 1959 (Potosí, Bolivia)
- Echinopsis chalaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley 1974 (Chala, Arequipa, Peru)
= Trichocereus chalaensis Rauh & Backeberg 1956
- Echinopsis chamaecereus H. Friedrich & Glaetzle 1983 (Tucumán, Argentina)
= Chamaecereus silvestrii (Spegazzini) Britton et Rose 1922
= Lobivia silvestri G.D.Rowley 1967
- Echinopsis chiloensis (Colla) H. Friedrich et G. D. Rowley 1974 - cacto, quisco, (Chile)
= Cereus chiloensis (Colla) A. P. de Candolle 1828
= Trichocereus chiloensis (Colla) Britton et Rose 1920
- Echinopsis chrysantha Werdermann 1931 (Salta, Argentina)
= Lobivia chrysantha (Werdermann) Backeberg 1935
= Hymenorebutia chrysantha (Werdermann) F. Ritter 1980
= Lobivia polaskiana Backeberg 1948
- Echinopsis chryschete Werdermann 1936 (Culpina, Potosí, Bolivia, Volcánm Jujuy, Argentina)
= Lobivia chryschete (Werdermann) Wessner 1938
= Lobivia hystrix F. Ritter 1966
= Lobivia markusii F. Ritter 1966
- Echinopsis cinnabarina (W. J. Hooker) Labouret 1853 (Andes, Bolivia)
= Lobivia cinnabarina (W. J. Hooker) Britton & Rose 1922
= Lobivia walterspielii Boedeker 1936
= Pseudolobivia acanthoplegma Backeberg 1962 (non val. publ.)
= Echinopsis cinnabarina subsp. acanthoplegma (Backeberg) G. D. Rowley 1982 (non val. publ.)
= Lobivia neocinnabarina Backeberg 1963 (non val. publ.)
= Lobivia oligotricha Cárdenas 1963
= Lobivia pseudocinnabarina Backeberg 1963 (non val. publ.)
= Lobivia charcasina Cárdenas 1964
= Lobivia taratensis Cárdenas 1966
= Echinopsis cinnabarina subsp. taratensis (Cárdenas) G. D. Rowley 1982
= Lobivia prestoana Cárdenas 1970
= Echinopsis cinnabarina subsp. prestoana (Cárdenas) G. D. Rowley 1982
= Lobivia zudanensis Cárdenas 1970
= Lobivia draxleriana Rausch 1971
- Echinopsis clavata (F. Ritter) D. R. Hunt 1997 (La Paz, Bolivia)
= Trichocereus clavatus F. Ritter 1980
- Echinopsis cochabambensis Backeberg 1957 (Cochabamba, Bolivia)
- Echinopsis comarapana Cárdenas 1957 (Vallegrande province, Santa Cruz, Bolivia)
= Echinopsis pereziensis Cárdenas 1963
= Echinopsis ayopayana F. Ritter & Rausch 1968
- Echinopsis conaconensis (Cárdenas) H. Friedrich & G. D. Rowley 1974 (La Paz, Bolivia)
= Trichocereus conaconensis Cárdenas 1953
= Helianthocereus conaconensis (Cárdenas) Backeberg 1955
- Echinopsis coquimbana (Molina) H. Friedrich & G. D. Rowley 1974 (Coquimbo, Chile)
= Trichocereus coquimbanus (Molina) Britton & Rose 1920
= Trichocereus serenanus F. Ritter 1965
- Echinopsis coronata Cárdenas 1957 (Florida province, Santa Cruz, Bolivia)
- Echinopsis cotacajesii Cárdenas 1970 (Ayopaya province, Cochabamba, Bolivia)
- Echinopsis crassicaulis (R. Kiesling) H. Friedrich & Glaetzle 1983 (northern Argentina)
= Lobivia crassicaulis R. Kiesling 1978
= Helianthocereus crassicaulis (R. Kiesling) Backeberg 1966 (n.val.pub.)
- Echinopsis cuzcoensis (Britton & Rose) H. Friedrich & G. D. Rowley 1974 (Cuzco, Peru)
= Trichocereus cuzcoensis Britton & Rose 1920
- Echinopsis densispina Werdermann 1934 (soutnern Bolivia, northern Argentina)
= Lobivia densispina (Werdermann) Werdermann ex Backeberg & F. M. Knuth 1935
= Hymenorebutia densispina (Werdermann) Buining 1939
= Hymenorebutia haematantha subsp. densispina (Werdermann) Rausch & G. D. Rowley 1982
= Echinopsis scoparia Werdermann 1934
= Lobivia scoparia (Werdermann) Werdermann ex Backeberg & F. M. Knuth 1935
= Hymenorebutia scoparia (Werdermann) Buining 1939
= Lobivia rebutioides Backeberg 1934
= Hymenorebutia rebutioides (Backeberg) Buining 1939
= Echinopsis rebutioides (Backeberg) H. Friedrich 1974
= Lobivia chlorogona Wessner 1940
= Hymenorebutia chlorogona (Wessner) F. Ritter 1980
= Lobivia napina Pazout 1960
= Hymenorebutia napina (Pazout) Pazout 1964
- Echinopsis derenbergii Fric 1927 (Paraguay)
- Echinopsis deserticola (Werdermann) H. Friedrich & Glaetzle 1983 (Atacama, Antofagasta, Chile)
= Cereus deserticola Werdermann 1929
= Trichocereus deserticola Looser 1929
= Trichocereus fluvilanus F. Ritter 1962
= Echinopsis fluvilanus (F. Ritter) H. Friedrich & G. D. Rowley 1974
- Echinopsis escayachensis (Cárdenas) H. Friedrich & G. D. Rowley 1974 (Mendez province, Tarija, Bolivia)
= Trichocereus escayachensis Cárdenas 1963
= Helianthocereus escayachensis (Cárdenas) Backeberg 1966
- Echinopsis eyriesii (Turpin) Preiffer et Otto 1839 - pink easter lily cactus,(southern Brazil, northern Argentina)
= Echinocactus eyriesii Turpin 1830
= Echinonyctanthes eryriessi Lemaire 1839
= Echinopsis turpinata Pfeiffer & Otto 1839
= Echinopsis pudantii Pfersdorf 1900
- Echinopsis fabisii (R. Kielsing) G. D. Rowley 1979 (Jujuy, Argentina)
= Trichocereus fabisii R. Kielsing 1976
- Echinopsis famatismensis (Spegazzini) Werdermann 1931 (Famatina, La Rioja, Argentina)
= Lobivia famatismensis (Spegazzini) Britton & Rose 1923
= Rebutia famatismensis (Spegazzini) Spegazzini ex Hosseus 1926
= Lobivia pectenifera Wessner ex Fritzen 1940
= Echinopsis densispina var. pectenifera (Wessner ex Fritzen) J. G. Lambert 1998
= Reicheocactus pseudoreicheanus Backeberg 1942
- Echinopsis ferox (Britton & Rose) Backeberg 1934 (southern Bolivia, northern Argentina)
= Lobivia ferox Britton & Rose 1922
= Pseudolobivia ferox (Britton & Rose) Backeberg 1942
= Lobivia longispina Britton & Rose 1922
= Echinopsis longispina (Britton & Rose) Werdermann 1931
= Pseudolobivia ferox (Britton & Rose) Backeberg ex Krainz 1942
= Echinopsis potosina Werdermann 1931
= Pseudolobivia potosina (Werdermann) Backeberg ex Krainz 1942
= Lobivia potosina (Werdermann) H. Friedrich 1974
= Lobivia claeysiana Backeberg 1937
= Lobivia hastifera Werdermann 1938
= Lobivia aureolilacina Cárdenas 1961
= Lobivia backebergiana Y. Itô 1962
= Lobivia pachyacantha Y. Itô 1962
= Pseudolobivia wilkeae Backeberg 1962 (n.val.publ.)
= Echinopsis lecoriense Cárdenas 1963
= Pseudolobivia lecoriense (Cárdenas) Backeberg 1966
= Lobivia horrida F. Ritter 1963
= Lobivia pictiflora F. Ritter 1966
= Lobivia varispina F. Ritter 1980
- Echinopsis formaosa (Pfeiffer) Jacobi 1850 (western Argentina, Andes, Chile)
= Lobivia formaosa (Pfeiffer) Dodds 1937
= Soehrensia formaosa (Pfeiffer) Backeberg 1959
= Trichocereus formaosa (Pfeiffer) F. Ritter 1980
= Lobivia oreopepon Spegazzini 1925
= Soehrensia oreopepon (Spegazzini) Backeberg 1959
= Trichocereus randallii Cárdenas 1963
= Heliantocereus randallii (Cárdenas) Backeberg 1966
= Echinopsis randallii (Cárdenas) H. Friedrich & G. D. Rowley 1974
= Lobivia kieslingii Rausch 1977
= Lobivia rosarioana Rausch 1979
- Echinopsis friedrichii G. D. Rowley 1974 (northern Argentina)
- Echinopsis glauca (F. Ritter) H. Friedrich & G. D. Rowley 1974 (Arequipa, Peru)
= Trichocereus glaucus F. Ritter 1962
- Echinopsis glaucina H. Friedrich & G. D. Rowley 1974 (Arequipa, Peru)
= Acanthocalycium glaucum F. Ritter 1968 (not: Echinopsis glauca (F. Ritter) H. Friedrich & G. D. Rowley 1974 !)
= Acanthocalycium aurantiacum Rausch 1968
= Echinopsis aurantiacum (Rausch) H. Friedrich & G. D. Rowley 1974
- Echinopsis haematantha (Spegazzini) D. R. Hunt 1991 (nothern Argentina)
= Lobivia haematantha (Spegazzini) Britton & Rose 1922
= Lobivia kuehnrichii Fric 1931
= Hymenorebutia kuehnrichii (Fric) F. Ritter 1980
= Echinopsis kuehnrichii (Fric) H. Friedrich & G. D. Rowley 1974
= Echinopsis haematantha subsp. kuehnrichii (Fric) J. G. Lambert 1998
= Lobivia drijveriana Backeberg 1933
= Hymenorebutia drijveriana (Backeberg) F. Ritter 1980
= Lobivia elongata Backeberg 1957
= Echinopsis elongata (Backeberg) H. Friedrich & Glaetzle 1983
= Echinopsis haematantha subsp. elongata (Backeberg) J. G. Lambert 1998
= Lobivia mirabunda Backeberg 1957
= Lobivia hualfinensis Rausch 1968
= Echinopsis hualfinensis (Rausch) H. Friedrich & Glaetzle 1983
= Echinopsis haematantha subsp. hualfinensis (Rausch) J. G. Lambert 1998
= Lobivia amblayensis Rausch 1968
= Echinopsis amblayensis (Rausch) H. Friedrich 1974
= Echinopsis densispina subsp. amblayensis (Rausch) J. G. Lambert 1998
= Lobivia chorrillosensis Rausch 1968
= Echinopsis haematantha subsp. chorrillosensis (Rausch) J. G. Lambert 1998
= Lobivia haematantha var. jasimanensis Rausch 1968
= Echinopsis haematantha subsp. jasimanensis (Rausch) J. G. Lambert 1998
- Echinopsis hahniana (Backeberg) R. S. Wallace 1997 (Río Apia region, Paraguay)
= Mediocactus hahnianus Backeberg 1956
= Harrisia hahnianus (Backeberg) Kimnach & Hutchison 1987
- Echinopsis hammerschmidii Cárdenas 1956 (Velasco province, Santa Cruz, Bolivia)
- Echinopsis hetrichiana (Backeberg) D. R. Hunt 1991 (southeastern Peru)
= Lobivia hetrichiana Backeberg 1933
= Neolobivia hetrichiana (Backeberg) F. Ritter 1981
= Echinopsis backebergii subsp. hetrichiana (Backeberg) G. D. Rowley 1982
= Lobivia allegraiana Backeberg 1935
= Lobivia binghamiana Backeberg 1935
= Lobivia incaica Backeberg 1935
= Neolobivia incaica (Backeberg) F. Ritter 1981
= Lobivia planiceps Backeberg 1935
= Lobivia huilcanota Rauh & Backeberg 1957
= Lobivia minuta F. Ritter 1963
= Neolobivia minuta (F. Ritter) F. Ritter 1981
= Lobivia vilcabambae F. Ritter 1963
= Neolobivia vilcabambae (F. Ritter) F. Ritter 1981
= Lobivia simplex Rausch 1972
= Lobivia echinata Rausch 1973
= Neolobivia echinata (Rausch) F. Ritter 1981
= Lobivia laui Donald 1974
- Echinopsis huascha (F. A. C. Weber) H. Friedrich & G. D. Rowley 1974 (nothern Argentina)
= Trichocereus huascha (F. A. C. Weber) Britton & Rose 1920
= Lobivia huascha (F. A. C. Weber) W. T. Marshall 1938
= Helianthocereus huascha (F. A. C. Weber) Backeberg 1951
= Cereus andalgalensis F. A. C. Weber 1893
= Lobivia andalgalensis (F. A. C. Weber) Britton & Rose 1922
= Trichocereus andalgalensis (F. A. C. Weber) Hosseus 1939
= Helianthocereus andalgalensis (F. A. C. Weber) Backeberg 1951
= Lobivia grandiflora Britton & Rose 1922
= Helianthocereus grandiflorus (Britton & Rose) Backeberg 1955
= Lobivia hyalacantha Spegazzini 1925
= Helianthocereus hyalacanthus (Spegazzini) Backeberg 1959
= Echinopsis lobivioides Backeberg 1934
= Trichocereus lobivioides (Backeberg) R. Gräser & F. Ritter 1980
= Helianthocereus pecheretianus Backeberg 1955
= Echinopsis pecheretianus (Backeberg) H. Friedrich & G. D. Rowley 1974
= Trichocereus grandiflorus Backeberg 1966
= Trichocereus rowleyi H. Friedrich 1974
= Echinopsis rowleyi (H. Friedrich) R. Kiesling 1978
= Lobivia purpureominiata F. Ritter 1980
= Trichocereus catamarcensis F. Ritter 1980
- Echinopsis huotti (Cels) Labouret 1853 (Bolivia)
= Echinocactus huotti Cels 1847
= Echinopsis pamparuizii Cárdenas 1970
- Echinopsis huotti subsp. vallegrandensis (Cárdenas) G. Navarro 1996 (Vallegrande province, Bolivia)
= Echinopsis vallegrandensis Cárdenas 1959
- Echinopsis hystrichoides F. Ritter 1980 (Cinti province, Chuquisaca, Bolivia)
- Echinopsis ibicuatensis Cárdenas 1970 (Cordillera province, Santa Cruz, Bolivia)
- Echinopsis kladiwaiana Rausch 1972 (Inquisivi, La Paz, Bolivia)
- Echinopsis klingleriana Cárdenas 1965(Santa Cruz, Bolivia)
- Echinopsis knuthiana (Backeberg) H. Friedrich & G. D. Rowley 1974 (Marañón, Peru)
= Trichocereus knuthianus Backeberg 1937
= Azureocereus deflexispinus Backeberg ex Rauh 1958
- Echinopsis korethroides Werdermann ex Backeberg 1931 (northern Argentina)
= Soehrensia korethroides (Werdermann ex Backeberg) Backeberg 1937
= Trichocereus korethroides (Werdermann ex Backeberg)F. Ritter 1980
- Echinopsis langeniformis (Förster) H. Friedrich & G. D. Rowley 1974 (La Paz, Bolivia)
= Cereus langeniformis Förster 1861
= Cereus bridgesii Salm-Dyck 1850
= Trichocereus bridgesii (Salm-Dyck) Britton & Rose 1920
- Echinopsis lamprochlora (Lemaire) H. Friedrich & Glaetzle 1983 (Bolivia)
= Cereus lamprochlorus Lemaire 1938
= Trichocereus lamprochlorus (Lemaire) Britton & Rose 1920
= Trichocereus purpureopilosus Weingart 1930
= Echinopsis purpureopilosus (Weingart) H. Friedrich & G. D. Rowley 1974
- Echinopsis lateritia Gürke 1907 (southern Bolivia)
= Lobivia lateritia (Gürke) Britton & Rose 1922
= Lobivia carminanta Backeberg 1935
= Lobivia kupperiana Backeberg 1935
= Lobivia cintiensis Cárdenas 1959
= Hymenorebutia cintiensis (Cárdenas) F. Ritter 1980
= Lobivia scopulina Backeberg 1962
= Lobivia camataquiensis Cárdenas 1963
= Hymenorebutia torataensis F. Ritter 1980
= Hymenorebutia torreana F. Ritter 1980
- Echinopsis leucantha (Gillies ex Salm-Dyck) Walpers 1843 (western Argentina)
= Echinopsis cordobensis Spegazzini 1905
= Echinopsis intricatissima Spegazzini 1905
= Echinopsis melanopotamica Spegazzini 1905
= Echinopsis shaferi Britton & Rose 1922
= Echinopsis spegazziniana Britton & Rose 1922
- Echinopsis littoralis (Jahow) H. Friedrich & G. D. Rowley 1974 (Bolivia)
= Trichocereus littoralis (Jahow) Looser 1929
- Echinopsis macrogona (Salm-Dyck) H. Friedrich & G. D. Rowley 1974 (Bolivia)
= Trichocereus macrogonus (Salm-Dyck) Riccobono 1909
- Echinopsis mammillosa Gürke 1907 (Tarija, Bolivia)
= Echinopsis ritteri Boedeker 1932
= Pseudolobivia kermesina Krainz 1942
= Echinopsis kermesina (Krainz) Krainz 1961
- Echinopsis mammillosa subsp. silvatica (F. Ritter) P. J. Braun & Esteves 1995 (O'Connor province, Tarija, Bolivia)
= Echinopsis silvatica F. Ritter 1965
- Echinopsis marsonieri Werdermann 1932 (northern Argentina)
= Lobivia marsonieri (Werdermann) Backeberg 1935
= Lobivia chrysanta subsp. marsonieri (Werdermann) Rausch ex G. D. Rowley 1982
= Lobivia haageana Backeberg 1933
= Lobivia jajoiana Backeberg 1933
= Lobivia chrysanta subsp. jajoiana (Backeberg) Rausch ex G. D. Rowley 1982
= Lobivia iridescens Backeberg 1935
= Lobivia rubescens Backeberg 1935
= Lobivia nigrostoma Kreuzinger & Buining 1950
= Lobivia uitewaaleana Buining 1951
= Lobivia muhriae Backeberg 1963 (n. val. publ.)
= Lobivia glauca Rausch 1971
= Lobivia buiningiana F. Ritter 1980
= Lobivia miniatinigra F. Ritter 1980
= Lobivia tuberculosa F. Ritter 1980
- Echinopsis mataranensis Cárdenas 1970 (Tarata province, Cochabamba, Bolivia)
- Echinopsis maximiliana Heyder ex A. Dietrich 1846 (northern Bolivia, southern Peru)
= Lobivia maximiliana (Heyder ex A. Dietrich) Backeberg 1937
= Lobivia caespitosa Britton & Rose 1922
= Echinopsis maximiliana subsp. caespitosa (Britton & Rose) G. D. Rowley 1982
= Lobivia corbula Britton & Rose 1922
= Lobivia hermanniana Backeberg 1933
= Lobivia westii Hutchison 1954
= Echinopsis maximiliana subsp. westii (Hutchison) G. D. Rowley 1982
= Lobivia charazanensis Cárdenas 1957
= Lobivia cariquinensis Cárdenas 1959
= Lobivia pseudocariquinensis Cárdenas 1961
= Lobivia miniatiflora F. Ritter 1963
= Lobivia cruciaureispina Knize 1969
= Lobivia sicuaniensis Rausch 1971
= Lobivia intermedia Rausch 1971
- Echinopsis meyeri Heese 1907 (Paraguay)
- Echinopsis mieckleyi R. Meyer 1918 (Bolivia)
- Echinopsis minuana Spegazzini 1905 (eastern Argentina)
- Echinopsis mirabilis Spegazzini 1905 (Santtiago del Estero, Argentina)
= Setiechinopsis mirabilis (Spegazzini) Backeberg ex De Haas 1940
- Echinopsis molesta Spegazzini 1905 (Còrdoba. Argentina)
- Echinopsis nigra Backeberg 1935 (nothern Argentina)
= Pseudolobivia nigra (Backeberg) Backeberg 1942
- Echinopsis obrepanda (Salm-Dyck) K. Schumann 1894 (Bolivia)
= Pseudolobivia obrepanda (Salm-Dyck) Backeberg ex Krainz 1942
= Lobivia fiebrigii Gürke 1905
= Pseudolobivia fiebrigii (Gürke) Backeberg ex Krainz 1942
= Lobivia mizquensi Rauch 1972
= Echinopsis rauschii H. Firedrich 1974
= Lobivia aguilarii R. Vásquez 1974
- Echinopsis oxygona (Link) Zuccarini ex Pfeiffer & Otto 1939 (Bolivia, Argentina, Uruguay, Paraguay)
= Cereus oxygona Link 1830
= Cereus multiplex Peiffer 1837
= Echinopsis multiplex (Peiffer) Peiffer & Otto 1839
= Echinopsis schwantesii Fric 1927
= Echinopsis paraguayensis Mundt ex f. Ritter 1979
- Echinopsis pachanoi (Britton & Rose) H. Friedrich & G. D. Rowley 1974 (nothern Argentina)
= Trichocereus pachanoi Britton & Rose 1920
- Echinopsis pampana (Britton & Rose) D. R. Hunt 1991 (Southern Peru)
= Lobivia pampana Britton & Rose 1922
= Echinopsis mistiensis Werdermann & Backeberg 1931
= Lobivia mistiensis (Werdermann & Backeberg) Backeberg 1934
= Lobivia aureosenilis Knize 1969
= Lobivia glaucescens F. Ritter 1981
- Echinopsis pentlandii (W. J. Hooker) Salm-Dyck ex A. Dietrich 1846 (Andes, southern Peru, northern Bolivia)
= Lobivia pentlandii (W. J. Hooker) Britton & Rose 1922
= Echinopsis scheeri Salm-Dyck 1850
= Lobivia scheeri (Salm-Dyck) Rausch 1992
= Lobivia boliviensis Britton & Rose 1922
= Lobivia higginsiana Backeberg 1933
= Lobivia wegheiana Backeberg 1933
= Echinopsis hardeniana Boedeker 1935
= Lobivia hardeniana (Boedeker) Boedeker ex Backeberg& F. M. Knuth 1935
= Lobivia pentlandii subsp. hardeniana (Boedeker ex Backeberg& F. M. Knuth) G. Navarro 1996
= Lobivia argentea Backeberg 1935
= Lobivia leucorhodon Backeberg 1935
= Lobivia leucoviolacea Backeberg 1935
= Lobivia raphidacantha Backeberg 1935
= Lobivia varians Backeberg 1935
= Lobivia schneideriana Backeberg 1937
= Lobivia acculeata Buining 1941
= Lobivia brunneo-rosea Backeberg 1957
= Lobivia lauramarca Rauh & Backeberg 1957
= Lobivia johnsonia Backeberg 1959
= Lobivia titicacensis Backeberg 1959
= Lobivia multicostata Backeberg 1963 (n.val.publ.)
= Lobivia larae Cárdenas 1964
= Lobivia pentlandii subsp. larae (Cárdenas) G. Navarro 1996
= Lobivia omasuyana Cárdenas 1966
- Echinopsis peruviana (Britton & Rose) H. Friedrich & G. D. Rowley 1974 (Peru)
= Trichocereus peruvianus Britton & Rose 1920
= Trichocereus peruvianus F. Ritter 1981
= Trichocereus torataensis F. Ritter 1981
- Echinopsis peruviana subsp. puquiensis (Rauh & Backeberg) Ostolaza 1998 (Puquio, Peru)
= Trichocereus puquiensis Rauh & Backeberg 1956
= Echinopsis puquiensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley 1974
- Echinopsis pojoensis Cárdenas 1959 (Pojo, Cochabamba, Bolivia)
- Echinopsis pseudomammillosa Cárdenas 1959 (Cerado province, Cochabamba, Bolivia)
- Echinopsis pungionacantha Rose & Boedeker 1931 (southern Bolivia, northern Argentina)
= Lobivia pungionacantha (Rose & Boedeker) Backeberg 1935
= Echinopsis stollwerkiana Boedeker 1936
= Lobivia culpinensis F. Ritter 1966
= Lobivia cornuta Rausch 1972
= Lobivia salitrensis Rausch 1974
= Lobivia versicolor Rausch 1974
= Lobivia adpressispinacornuta F. Ritter 1980
= Lobivia campicola F. Ritter 1980
- Echinopsis pungionacantha subsp. rossii (Boedeker) G. Navarro 1996 (southern Bolivia)
= Echinopsis rossii Boedeker 1933
= Lobivia rossii (Boedeker) Boedeker ex Backeberg & F. M. Knuth 1935
- Echinopsis quadratiumbonata (F. Ritter) D. R. Hunt 1997 (Cordillera province, Santa Cruz, Bolivia)
= Trichocereus quadratiumbonata F. Ritter 1980
- Echinopsis rhodotricha K. Schumann 1900 (Boeto province, Chuquisaca, Bolivia)
- Echinopsis rhodotricha subsp. chacoana (Schütz) P. J. Braun & Esteves 1995 (Chaco Boreal region, Paraguay)
= Echinopsis chacoana Schütz 1949
- Echinopsis riviere-de-caraltii Cárdenas 1971 (Boeto province, Chuquisaca, Bolivia)
- Echinopsis saltensis Spegazzini 1905 (Tucumán, Salta, nothern Argentina)
= Lobivia saltensis (Spegazzini) Britton & Rose 1922
= Echinopsis cachensis Spegazzini 1905
= Lobivia cachensis (Spegazzini) Britton & Rose 1922
= Lobivia nealeana Backeberg 1934
= Hymenorebutia nealeana (Backeberg) Buining 1939
= Echinopsis nealeana (Backeberg) H. Friedrich 1974
= Echinopsis saltaensis var. nealeana (Backeberg) J. G. Lambert 1998
= Lobivia pseudocachensis Backeberg 1934
= Hymenorebutia pseudocachensis (Backeberg) Buining 1939
= Echinopsis pseudocachensis (Backeberg) H. Friedrich 1974
= Echinopsis saltaensis var. pseudocachensis (Backeberg) J. G. Lambert 1998
= Lobivia emmae Backeberg 1948
- Echinopsis sanguiniflora (Backeberg) D. R. Hunt 1991 (nothern Argentina)
= Lobivia sanguiniflora Backeberg 1935
= Lobivia breviflora Backeberg 1935
= Lobivia duursmaianaBackeberg 1935
= Lobivia polycephala Backeberg 1935
- Echinopsis santaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley 1974 (Río Majes, southern Peru)
= Trichocereus santaensis Rauh & Backeberg 1956
- Echinopsis schickendantzii F. A. C. Weber 1974 (Tucumán, nothwestern Argentina)
= Trichocereus schickendantzii (F. A. C. Weber) Britton & Rose 1920
= Trichocereus shageri Britton & Rose 1920
= Trichocereus manguinii Backeberg 1953
= Echinopsis manguinii (Backeberg) H. Friedrich & G. D. Rowley 1974
= Trichocereus volcanensis F. Ritter 1980
- Echinopsis schieliana (Backeberg) D. R. Hunt 1987 (Peru, Bolivia)
= Lobivia schieliana Backeberg 1957
= Lobivia backebergii subsp. schieliana (Backeberg) G. D. Rowley 1982
= Lobivia quiabayensis Rausch 1968
= Echinopsis maximiliana subsp. quiabayensis (Rausch) G. D. Rowley 1982
= Lobivia leptacantha Rausch 1972
- Echinopsis schoenii (Rauh & Backeberg) H. Friedrich & G. D. Rowley 1974 (Río Majes, southern Peru)
= Trichocereus schoenii Rauh & Backeberg 1958
- Echinopsis schrieteri (A. Castellanos) Werdermann 1931 (Tucumán, Argentina)
= Lobivia schrieter A. Castellanos 1930
= Lobivia stilowiana Backeberg 1949
= Echinopsis stilowiana (Backeberg) J. G. Lambert 1998
- Echinopsis scopulicola (F. Ritter) Mottram 1997 (O'Connor province, Tarija, Bolivia)
= Trichocereus scopulicola F. Ritter 1966
- Echinopsis silvestrii Spegazzini 1905 - peanut cactus, (Tucumán, Salta, nothwestern Argentina)
- Echinopsis skottsbergii (Backeberg) H. Friedrich & G. D. Rowley 1974 (coast of Coquimbo, Chile)
= Trichocereus skottsbergii Backeberg 1950
- Echinopsis smrziana Backeberg 1935 (nothern Argentina)
= Soehrensia smrziana (Backeberg) Backeberg 1959
= Trichocereus smrziana (Backeberg) Backeberg 1966
- Echinopsis spachiana (Lemaire) H. Friedrich & G. D. Rowley 1974 (western Argentina)
= Trichocereus spachianus (Lemaire) Riccobono 1909
= Trichocereus santiaguensis (Spegazzini) Backeberg 1959
= Echinopsis santiaguensis (Spegazzini) H. Friedrich & G. D. Rowley 1974
- Echinopsis spinibarbis (Otto) A. E. Hoffmann 1989 (Coquimbo, Totoral Bajo, Atacama, Chile)
= Eulychnia spinibarbis (Otto) Britton & Rose 1920
= Trichocereus spinibarbis (Otto) F. Ritter 1965
- Echinopsis strigosa (Salm-Dyck) H. Friedrich & G. D. Rowley 1974 (western Argentina)
= Trichocereus strigosus (Salm-Dyck) Britton & Rose 1920
- Echinopsis subdenudata Cárdenas 1956 (Bolivia, Paraguay)
- Echinopsis sucrensis Cárdenas 1963 (Bolivia)
- Echinopsis tacaquirensis (Vaupel) H. Friedrich & G. D. Rowley 1974 (western Argentina, Bolivia)
= Trichocereus tacaquirensis (Vaupel) Cárdenas ex Backeberg 1959
- Echinopsis tacaquirensis subsp. taquimbalensis (Cárdenas) G. Navarro 1996 (Taquimbala province, Cochabamba, Bolivia)
= Trichocereus taquimbalensis Cárdenas 1953
= Echinopsis taquimbalensis (Cárdenas) H. Friedrich & G. D. Rowley 1974
- Echinopsis taratensis (Cárdenas) H. Friedrich & G. D. Rowley 1974 (Peru, Bolivia)
= Trichocereus taratensis Cárdenas 1966
- Echinopsis tarijensis (Vaupel) H. Friedrich & G. D. Rowley 1974 (Bolivia, Argentina)
= Trichocereus tarijensis (Vaupel) Werdermann 1940
= Helianthocereus tarijensis (Vaupel) Backeberg 1955 (n. val. publ.)
= Lobivia formosa subsp. tarijensis (Vaupel) Rausch 1977
= Trichocereus poco Backeberg 1935
= Helianthocereus poco (Vaupel) Backeberg 1951
= Echinopsis poco (Vaupel) H. Friedrich & G. D. Rowley 1974
- Echinopsis tarijensis subsp. herzogiana (Cárdenas) G. Navarro 1996 (La Paz, Bolivia)
= Trichocereus herzogiana Cárdenas 1953
= Helianthocereus herzogiana (Cárdenas) Backeberg 1955
= Echinopsis herzogiana (Cárdenas) H. Friedrich & G. D. Rowley 1974
- Echinopsis tarijensis subsp. totorensis (Cárdenas) G. Navarro 1996 (La Paz, Bolivia)
= Trichocereus herzogiana var. totorensis Cárdenas 1953
= Echinopsis totorensis (Cárdenas) F. Ritter 1980
- Echinopsis tarmaensis (Rauh & Backeberg) H. Friedrich & G. D. Rowley 1974 (Tarma, Junín, Peru)
= Trichoereus tarmaensis Rauh & Backeberg 1956
- Echinopsis tegeleriana (Backeberg) D. R. Hunt 1987 (Huancayo, Tarma, Junín, Peru)
= Lobivia tegeleriana Backeberg 1936
= Acantholobivia tegeleriana (Backeberg) Backeberg 1942
= Lobivia incuiensis Rauh & Backeberg 1957
= Acantholobivia incuiensis (Rauh & Backeberg) Rauh & Backeberg 1958
= Lobivia akersii Rausch 1973
- Echinopsis terscheckii (Parmentier) H.Friedrich & G.D.Rowley 1974, (northern Argentina)
= Trichocereus terscheckii (Parmentier) Britton et Rose 1920
= Trichocereus werdermannianus Backeberg 1935
= Echinopsis werdermanniana (Backeberg) H.Friedrich & G.D.Rowley 1974
- Echinopsis thelegona (F. A. C. Weber) H. Friedrich & G. D. Rowley 1974 (Jujuy, Argentina)
= Trichocereus thelegonoides (F. A. C. Weber) Britton & Rose 1920
- Echinopsis thelegonoides (Spegazzini) H. Friedrich & G. D. Rowley 1974 (Jujuy, Argentina)
= Trichocereus thelegonoides (Spegazzini) Britton & Rose 1920
= Trichocereus rubinghianus Backeberg 1963 (n.val.publ.)
= Echinopsis rubinghianus (Backeberg) H. Friedrich & G. D. Rowley 1974 (n.val.publ.)
- Echinopsis thioantha (Spegazzini) Werdermann 1931 (Salta, Argentina)
= Echinocactus thioanthus Spegazzini 1905
= Lobivia thioantha (Spegazzini) Britton & Rose 1922
= Acanthocalycium thioanthum (Spegazzini) Backeberg 1935
= Lobivia chionantha (Spegazzini) Britton & Rose 1922
= Echinopsis chionantha (Spegazzini) Werdermann 1931
= Acanthocalycium chionanthum (Spegazzini) Backeberg 1935
= Acanthocalycium griseum Backeberg 1963 (n. val. publ.)
= Acanthocalycium brevispinum F. Ritter 1964
= Echinopsis brevispina (F. Ritter) H. Friedrich & G. D. Rowley 1974
= Acanthocalycium catamarcense F. Ritter 1980
- Echinopsis tiegeliana (Wessner) D. R. Hunt 1991 (southern Bolivia, northern Argentina)
= Lobivia tiegeliana Wessner 1939
= Hymenorebutia tiegeliana (Wessner) F. Ritter 1980
= Lobivia peclardiana Krainz 1948
= Lobivia pusilla F. Ritter 1966
= Hymenorebutia pusilla (F. Ritter) F. Ritter 1980
= Mediolobivia hirsuttissima Cárdenas 1971
= Lobivia fricii Rasuch 1973
= Echinopsis fricii (Rauch) H. Friedrich 1974
- Echinopsis trichosa (Cárdenas) H. Friedrich & G. D. Rowley 1974 (Cordillera province, Santa Cruz, Bolivia)
= Trichocereus trichosa Cárdenas 1957
- Echinopsis tubiflora (Pfeiffer) Zuccarini ex A. Dietrich 1846 (northern Argentina)
= Echinopsis albispina K. Schumann 1903
- Echinopsis tulhuayacensis (Ochoa) H. Friedrich & G. D. Rowley 1974 (Cerado province, Cochabamba, Bolivia)
= Trichocereus tulhuayacensis Ochoa 1957
- Echinopsis tunariensis (Cárdenas) H. Friedrich & G. D. Rowley 1974 (Cerado province, Cochabamba, Bolivia)
= Trichocereus tunariensis Cárdenas 1959
- Echinopsis uyupampensis (Backeberg) H. Friedrich & G. D. Rowley 1974 (Peru, Bolivia)
= Trichocereus uyupampensis Backeberg 1935
- Echinopsis vasquezii (Rausch) G. D. Rowley 1975 (Pojo, Cochabamba, Comarapa, Santa Cruz, Bolivia)
= Trichocereus vasquezii Rausch 1974
- Echinopsis vatteri (R. Kiesling) G. D. Rowley 1979 (La Rioja, Argentina)
= Trichocereus vatteri R. Kiesling 1976
- Echinopsis volliana (Backeberg) H. Friedrich & G. D. Rowley 1974 (Cochabamba, Bolivia)
= Trichocereus vollianus Backeberg 1935
- Echinopsis walteri (R. Kiesling) H. Friedrich & Glaetzle 1983 (Quebrada de Escoipe, Salta, Argentina)
= Lobivia walteri R. Kiesling 1976
= Trichocereus walteri (R. Kiesling) J. G. Lambert 1998
- Echinopsis werdermannii Fric ex Fleischer 1962 (Paraguay)
- Echinopsis yuquina R. D. Hunt 1991 (Chuquisaca, Bolivia)
= Lobivia rauschii Zecher 1974, not Echinopsis rauschii H. Friedrich 1974 (= E. obrepanda)
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