Gymnocalycium sanguiniflorum (Werderm.) Dölz species synonym

Gymnocalycium griseopallidum Backeb. species synonym

Echinocactus denudatus var. andersohnianus F.Haage variety synonym

Echinocactus megalothelos Sencke, 1898 species synonym

Gymnocalycium paediophilum Schütz species accepted

Cactus hyptiacanthus (Lem.) Steud. species synonym

Echinocactus denudatus var. wieditzianus F.Haage variety synonym

Gymnocalycium affine Repka species accepted

Echinocactus denudatus var. wagnerianus F.Haage variety synonym

Gymnocalycium valnicekianum Jojo ex Backeb. & F.M.Knuth, 1936 species accepted

Echinocactus denudatus var. roseiflorus Hildm. variety homotypic synonym

Gymnocalycium bruchii subsp. implexum Neuhuber subspecies synonym

Echinocactus denudatus var. paraguayensis (K.Schum.) Schelle variety synonym

Echinocactus platensis var. guerkeanus (Heese) Speg. variety synonym

Gymnocalycium pugionacanthum Backeb. ex H.Till species synonym

Echinocactus denudatus var. meiklejohnianus F.Haage variety synonym

Echinopsis denudatus (Pfeiff.) Bosse species synonym

Gymnocalycium mihanovichii var. piraretaense Pazout variety synonym

Gymnocalycium mihanovichii var. angustostriatum Pazout variety synonym

Gymnocalycium prochazkanum Šorma species synonym

Gymnocalycium ×intermedium (Hildm.) M.H.J.van der Meer species synonym

Gymnocalycium prochazkanum subsp. simile Řepka subspecies synonym

Gymnocalycium hossei subsp. hossei subspecies synonym

Gymnocalycium marekiorum var. roboreanum Schädlich variety synonym

Gymnocalycium marekiorum subsp. sanjoseanum Schädlich subspecies synonym

Gymnocalycium friedrichii (Werderm.) Pazout ex Schütz species synonym

Gymnocalycium prochazkanum subsp. simplex Řepka subspecies synonym

Gymnocalycium ×momo V.Gapon & Schelkun. species accepted

Gymnocalycium albiareolatum Rausch species accepted

Gymnocalycium basiatrum F.Berger, Amerh. & Sedlmeier species accepted

Gymnocalycium kroenleinii subsp. funettae Mereg. subspecies synonym

Gymnocalycium mendozaense C.A.L.Bercht & Schädlich species accepted

Gymnocalycium hossei (F.Haage ex A.Berger) A.W.Hill species accepted

Gymnocalycium alenae Kulhánek species accepted

Gymnocalycium campestre Repka species accepted

Gymnocalycium kulhanekii Papsch species accepted

Gymnocalycium kieslingii subsp. castaneum (O.Ferrari) Slaba subspecies synonym

Gymnocalycium pinalii Mereg. & Kulhánek species accepted

Gymnocalycium meregallii C.A.L.Bercht species synonym

Gymnocalycium gertii subsp. evelyniae Neuhuber & V.Gapon subspecies synonym

Gymnocalycium marekiorum Milt species accepted

Gymnocalycium carminanthum Borth & Koop ex Papsch species synonym

Gymnocalycium gibbosum (Haw.) Pfeiff. ex C.F.Först. species accepted

Gymnocalycium sanluisense Neuhuber species accepted

Gymnocalycium kieslingii subsp. frankianum (Rausch ex H.Till & Amerh.) Slaba subspecies synonym

Gymnocalycium cabreraense Schädlich, C.A.L.Bercht & Melojer species accepted

Gymnocalycium ponomarevae V.Gapon & Neuhuber species accepted

Gymnocalycium sutterianum subsp. arachnispinum Repka subspecies synonym

Gymnocalycium friedrichii var. angustostriatum Pazout variety homotypic synonym

Gymnocalycium saglionis var. australe H.Till variety synonym

Gymnocalycium artigas var. roseiflorum (Y.Itô) Milt variety synonym

Gymnocalycium friedrichii subsp. stenopleurum (F.Ritter) Schädlich subspecies synonym

Gymnocalycium valnicekianum subsp. prochazkanum (Šorma) H.Till & Amerh. subspecies synonym

Gymnocalycium platense subsp. schroederianum (Osten) Papsch subspecies synonym

Gymnocalycium baldianum subsp. sanguiniflorum (Werderm.) C.A.L.Bercht subspecies synonym

Gymnocalycium bruchii var. albispinum (Backeb.) Milt variety synonym

Gymnocalycium carolinense subsp. ludwigii Neuhuber subspecies synonym

Echnocactus rhodantherus Boed. species synonym

Gymnocalycium weissianum subsp. cinerascens Backeb. subspecies synonym

Gymnocalycium carolinense subsp. fedjukinii V.Gapon & Neuhuber subspecies synonym

Gymnocalycium oenanthemum var. montanum (Slaba) Slaba variety synonym

Gymnocalycium sutterianum subsp. dolezalii (Halda & Milt) Repka subspecies synonym

Gymnocalycium bruchii var. papschii (H.Till) Milt variety synonym

Gymnocalycium saglionis var. minus H.Till variety synonym

Gymnocalycium andreae subsp. pabloi Neuhuber subspecies synonym

Gymnocalycium prochazkianum subsp. simplex Repka subspecies synonym

Gymnocalycium bruchii subsp. deminii V.Gapon & Neuhuber subspecies synonym

Gymnocalycium saglionis f. splendens H.Till form synonym

Gymnocalycium pugionacanthum var. stejskalii Milt variety synonym

Gymnocalycium bruchii subsp. ludwigii (Neuhuber) Papsch subspecies synonym

Gymnocalycium baldianum var. raineri (H.Till) Milt variety synonym

Gymnocalycium parvulum var. walteri (H.Till) Milt variety synonym

Gymnocalycium berchtii var. nataliae (Neuhuber) Milt variety synonym

Gymnocalycium mostii subsp. bicolor Repka subspecies synonym

Echinocactus platensis subsp. quehlianus (Haage ex Quehl) Speg. subspecies synonym

Gymnocalycium friedrichii var. angustostriatum Pazout ex Milt variety synonym

Gymnocalycium mostii subsp. prochazkanum (Šorma) G.J.Charles subspecies synonym

Gymnocalycium platense subsp. paucicostatum (R.Kiesling) Papsch subspecies synonym

Gymnocalycium bruchii subsp. brigittae (Piltz) Papsch subspecies synonym

Gymnocalycium kieslingii f. albiareolatum O.Ferrari form synonym

Gymnocalycium parvulum subsp. agnesiae F.Berger subspecies synonym

Gymnocalycium mihanovichii subsp. albiflorum Pazout subspecies synonym

Gymnocalycium bruchii subsp. carolinense (Neuhuber) Papsch subspecies synonym

Gymnocalycium bodenbenderianum (Hosseus ex A.Berger) Hill species synonym

Gymnocalycium rhodantherum (Boed.) Backeb. species doubtful

Gymnocalycium saglionis f. columnare H.Till form synonym

Gymnocalycium prochazkianum subsp. simile Repka subspecies synonym

Gymnocalycium mostii subsp. prochazkianum (Sorma) G.J.Charles subspecies synonym

Gymnocalycium carolinense var. eltrebolense Neuhuber variety synonym

Gymnocalycium baldianum var. schreiteri (H.Till) Milt variety synonym

Gymnocalycium capillense var. gaponii (Neuhuber) Milt variety synonym

Echinocactus capillaensis Schick species synonym

Gymnocalycium oenanthemum var. tillianum (Rausch) Slaba variety synonym

Gymnocalycium volskyi V.Gapon, Ponomareva, Protopopov, Schelkun. & Zaitseva species accepted

Gymnocalycium villamercedense Ritter species accepted

Gymnocalycium asterium (Spegazzini) Y.Ito species accepted

Gymnocalycium ferox var. ferocior (Backeb.) Slaba variety synonym

Echinocactus denudatus f. wieditzianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus f. scheidelianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus f. roseiflorus (Hildm. ex K.Schum.) Schelle form synonym

Echinocactus denudatus f. octogonus (K.Schum.) Schelle form synonym

Echinocactus denudatus var. heuschkelianus F.Haage variety synonym

Echinocactus denudatus f. heuschkehlianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus f. delaetianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus var. delaetianus F.Haage variety proparte synonym

Echinocactus denudatus f. bruennowianus (F.Haage) Schelle form synonym

Echinocactus centeterius var. pachycentrus (Lehm. ex Pfeiff.) Salm-Dyck variety synonym

Gymnocalycium riojense var. guasayanense Strigl variety synonym

Gymnocalycium parvulum var. amoenum H.Till variety synonym

Gymnocalycium mostii var. kurtzianum (Gürke) Backeb. variety synonym

Gymnocalycium andreae var. svecianum Pazout variety synonym

Gymnocalycium boszingianum Schütz species synonym

Echinocactus denudatus var. multiflorus Quézel, M.Barbero & R.J.Loisel variety synonym

Echinocactus pachycentrus Lehm. species homotypic synonym

Gymnocalycium schroederianum subsp. schroederianum subspecies synonym

Gymnocalycium occultum Y.Itô, 1981 species accepted

Gymnocalycium riteranum Rausch species accepted

Echinocactus centeterius Lehm. species homotypic synonym

Echinocactus guerkeanus F.Haage species synonym

Echinocactus mazanensis Backeb. species synonym

Echinocactus denudatus Link & Otto species synonym

Echinocactus centeterius Lehm. ex Pfeiff. species synonym

Gymnocalycium valnicekianum Jajó species synonym

Gymnocalycium uruguayense (Arechav.) Britton & Rose species accepted

Gymnocalycium taningaense Piltz species accepted

Gymnocalycium striglianum Jeggle species accepted

Gymnocalycium stellatum (Speg.) Speg. species synonym

Gymnocalycium stellatum subsp. stellatum subspecies synonym

Gymnocalycium spegazzinii Britton & Rose species accepted

Gymnocalycium schroederianum Osten species accepted

Gymnocalycium schickendantzii (F.A.C.Weber) Britton & Rose species accepted

Gymnocalycium saglionis (Cels) Britton & Rose species accepted

Gymnocalycium saglionis subsp. saglionis subspecies synonym

Gymnocalycium saglione (Cels) Britton & Rose species synonym

Gymnocalycium ritterianum Rausch species accepted

Gymnocalycium riojense Fric ex Pazout species synonym

Gymnocalycium riojense subsp. riojense subspecies synonym

Gymnocalycium rhodantherum (Boed.) H.Till species accepted

Gymnocalycium reductum (Link) Pfeiff. ex Mittler species accepted

Gymnocalycium quehlianum (F.Haage ex Quehl) Vaupel ex Hosseus species accepted

Gymnocalycium proliferum (Boed.) Backeb. species synonym

Gymnocalycium prochazkianum Sorma species synonym

Gymnocalycium poeschlii Neuhuber species synonym

Gymnocalycium pflanzii (Vaupel) Werderm. species accepted

Gymnocalycium parvulum (Speg.) Speg. species synonym

Gymnocalycium paraguayense (K.Schum.) Hosseus species accepted

Gymnocalycium oenanthemum Backeb. species accepted

Gymnocalycium ochoterenae Backeb. species accepted

Gymnocalycium ochoterenae subsp. ochoterenae subspecies synonym

Gymnocalycium nigriareolatum Backeb. species accepted

Gymnocalycium mostii (Gürke) Britton & Rose species accepted

Gymnocalycium monvillei (Lem.) Pfeiff. ex Britton & Rose species accepted

Gymnocalycium mihanovichii (Fric & Gürke) Britton & Rose species accepted

Gymnocalycium megalothelon (Sencke ex K.Schum.) Britton & Rose species synonym

Gymnocalycium mazanense (Backeb.) Backeb. species synonym

Gymnocalycium marsoneri Fric ex Y.Itô species accepted

Gymnocalycium lukasikii Halda & Kupcák species synonym

Gymnocalycium lafaldense Vaupel species synonym

Gymnocalycium kieslingii O.Ferrari species accepted

Gymnocalycium jochumii Neuhuber species synonym

Gymnocalycium intertextum Backeb. species synonym

Gymnocalycium hyptiacanthum (Lem.) Britton & Rose species synonym

Gymnocalycium hossei (F.Haage) A.Berger species synonym

Gymnocalycium horstii Buining species accepted

Gymnocalycium glaucum F.Ritter species accepted

Gymnocalycium gibbosum (Haw.) Pfeiff., 1845 species doubtful

Gymnocalycium gaponii Neuhuber species synonym

Gymnocalycium friedrichii (Werderm.) Pazout species synonym

Gymnocalycium fleischerianum (Mereg., Metzing & R.Kiesling) L.Vala species synonym

Gymnocalycium fleischerianum var. fleischerianum variety synonym

Gymnocalycium fischeri Halda, Kupcák, Lukasik & Sladk. species synonym

Gymnocalycium erinaceum J.G.Lamb. species accepted

Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Mittler species accepted

Gymnocalycium damsii (K.Schum.) Britton & Rose species synonym

Gymnocalycium chiquitanum Cárdenas species accepted

Gymnocalycium catamarcense H.Till & W.Till species synonym

Gymnocalycium catamarcense subsp. catamarcense subspecies synonym

Gymnocalycium castellanosii Backeb. species accepted

Gymnocalycium carminanthum Borth & Koop species heterotypic synonym

Gymnocalycium calochlorum (Boed.) Y.Itô species accepted

Gymnocalycium bruchii (Speg.) Hosseus species accepted

Gymnocalycium bodenbenderianum (Hosseus) A.Berger species accepted

Gymnocalycium bodenbenderianum subsp. bodenbenderianum subspecies synonym

Gymnocalycium baldianum (Speg.) Speg. species accepted

Gymnocalycium asterium A.Cast. species synonym

Gymnocalycium anisitsii (K.Schum.) Britton & Rose species accepted

Gymnocalycium andreae (Boed.) Backeb. & F.M.Knuth species accepted

Gymnocalycium andreae subsp. andreae subspecies synonym

Gymnocalycium amerhauseri H.Till species accepted

Echinocactus uruguayensis Arechav. species synonym

Gymnocalycium reductum (Link) Pfeiff. & Otto species doubtful

Gymnocalycium damsii var. centrispinum Backeb. variety synonym

Cereus denudatus (Link & Otto) Hort.Berol. ex Pfeiff. species synonym

Neoporteria centeteria (Lehm. ex Pfeiff.) G.D.Rowley species synonym

Astrophytum bruchii (Speg.) Halda & Malina species synonym

Echinocactus platensis var. terweemeanus Teucq ex Duursma variety synonym

Echinocactus platensis var. parvulus Speg. variety synonym

Echinocactus platensis var. leptanthus Speg. variety synonym

Echinocactus paraguayensis K.Schum. species synonym

Echinocactus pachycentrus Lehm. ex Pfeiff. species synonym

Echinocactus ourselianus Cels ex Salm-Dyck species synonym

Echinocactus netrelianus Monv. ex Labour. species synonym

Echinocactus mostii Gürke species synonym

Echinocactus mihanovichii Fric & Gürke species synonym

Echinocactus melanocarpum Arechav. species synonym

Echinocactus mazanensis var. breviflorus Backeb. variety synonym

Echinocactus leptanthus K.Schmidt species synonym

Echinocactus lafaldensis (Vaupel) A.Berger species synonym

Echinocactus kurtzianus Gürke species synonym

Echinocactus joossensianus Boed. species synonym

Echinocactus intermedius (Hildm.) Schelle species synonym

Echinocactus hyptiacanthus Lem. species synonym

Echinocactus hybogonus Salm-Dyck species synonym

Echinocactus hossei F.Haage ex A.Berger species homotypic synonym

Echinocactus guerkeanus Heese species synonym

Gymnocalycium alboareolatum Rausch species accepted

Gymnocalycium albispinum Backeb. species synonym

Gymnocalycium acorrugatum J.G.Lamb. species synonym

Echinocactus denudatus f. wagnerianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus var. typica K.Schum. variety synonym

Echinocactus denudatus var. roseiflorus Hildm. ex K.Schum. variety synonym

Echinocactus denudatus var. octogonus K.Schum. variety synonym

Echinocactus denudatus f. meiklejohnianus (J.N.Haage) Schelle form synonym

Echinocactus denudatus var. leheideliana F.Haage variety synonym

Echinocactus denudatus f. heuschkelianus (F.Haage) Schelle form synonym

Echinocactus denudatus var. brumorviana F.Haage variety synonym

Echinocactus denudatus f. andersohnianus (J.N.Haage) Schelle form synonym

Echinocactus damsii K.Schum. species synonym

Echinocactus centeterius f. pachycentrus (Lehm. ex Pfeiff.) Schelle form synonym

Echinocactus centeterius var. major Lem. & Monv. variety synonym

Echinocactus calochlorus Boed. species synonym

Echinocactus bodenbenderianus Hosseus ex A.Berger species synonym

Echinocactus baldianus Speg. species synonym

Brachycalycium tilcarense Backeb. species synonym

Echinocactus anisitsii K.Schum. species synonym

Echinocactus andreae Boed. species synonym

Uebelmannia centeteria (Lehm. ex Pfeiff.) Schnabel species synonym

Gymnocalycium villosum Pfeiff. ex C.F.Först., 1846 species accepted

Gymnocalycium venturianum Backeb. species synonym

Gymnocalycium venturi Frič ex Backeb. & F.M.Knuth, 1936 species accepted

Gymnocalycium vatteri Buining species synonym

Gymnocalycium valnicekianum subsp. prochazkianum (Sorma) H.Till & Amerh. subspecies synonym

Gymnocalycium valnicekianum var. bicolor H.Till & Amerh. variety synonym

Gymnocalycium uruguayense var. roseiflorum Y.Itô variety synonym

Gymnocalycium uebelmannianum Rausch species accepted

Gymnocalycium triacanthum Backeb. species synonym

Gymnocalycium tobuschianum Schick-Freib. species synonym

Gymnocalycium tillianum Rausch species synonym

Gymnocalycium tilcarense (Backeb.) H.Till & W.Till species synonym

Gymnocalycium terweemeanum (Teucq ex Duursma) Borgmann & Piltz species synonym

Gymnocalycium taningaense var. lukasikii (Halda & Kupcák) Neuhuber variety synonym

Gymnocalycium taningaense subsp. fuschilloi Neuhuber subspecies synonym

Gymnocalycium sutterianum Hosseus species synonym

Gymnocalycium stenopleurum F.Ritter species accepted

Gymnocalycium stellatum var. zantnerianum (H.Schick) H.Till & W.Till variety synonym

Gymnocalycium stellatum var. paucispinum (Backeb.) Strong variety synonym

Gymnocalycium stellatum subsp. occultum Fric ex H.Till & W.Till subspecies synonym

Gymnocalycium stellatum var. obductum (Piltz) H.Till & W.Till variety synonym

Gymnocalycium stellatum var. minimum (Pazout) R.Strong variety synonym

Gymnocalycium stellatum var. kleinianum Rausch ex H.Till & W.Till variety synonym

Gymnocalycium stellatum var. flavispinum Bozsing ex H.Till & W.Till variety synonym

Gymnocalycium spegazzinii subsp. bayrianum (H.Till) Halda subspecies synonym

Gymnocalycium sigelianum (Schick ex A.Berger) Hosseus species synonym

Gymnocalycium schroederianum subsp. paucicostatum R.Kiesling subspecies synonym

Gymnocalycium schroederianum subsp. boessii R.Kiesling, Marchesi & O.Ferrari subspecies synonym

Gymnocalycium schroederianum subsp. bayense R.Kiesling subspecies synonym

Gymnocalycium schreiteri H.Till species synonym

Gymnocalycium sanguiniflorum (Werderm.) Werderm. species synonym

Gymnocalycium saglionis subsp. tilcarense (Backeb.) H.Till & W.Till subspecies synonym

Gymnocalycium saglionis var. jujuyense Backeb. variety synonym

Gymnocalycium saglione subsp. tilcarense (Backeb.) H.Till & W.Till, 1997 subspecies synonym

Gymnocalycium rosae H.Till species synonym

Gymnocalycium robustum R.Kiesling, O.Ferrari & Metzing species accepted

Gymnocalycium ritterianum subsp. acentracanthum F.Berger subspecies synonym

Gymnocalycium riojense var. sanjuanense H.Till & W.Till variety synonym

Gymnocalycium riojense var. platygonum Schütz ex H.Till & W.Till variety synonym

Gymnocalycium riojense var. pipanacoense H.Till & W.Till variety synonym

Gymnocalycium riojense subsp. piltziorum Schütz ex H.Till & W.Till subspecies synonym

Gymnocalycium riojense subsp. paucispinum Backeb. ex H.Till & W.Till subspecies synonym

Gymnocalycium riojense var. mirandaense H.Till & W.Till variety synonym

Gymnocalycium riojense subsp. kozelskyanum Schütz ex H.Till & W.Till subspecies synonym

Gymnocalycium riojense var. guthianum H.Till & W.Till variety synonym

Gymnocalycium riojense subsp. guasayanense (Strigl) H.Till subspecies synonym

Gymnocalycium rhodantherum subsp. recii Halda & Milt subspecies synonym

Gymnocalycium rhodantherum var. cinerascens H.Till variety synonym

Gymnocalycium rauschii H.Till & W.Till species synonym

Gymnocalycium raineri H.Till species synonym

Gymnocalycium ragonesei A.Cast. species accepted

Gymnocalycium quehlianum var. zantnerianum Schick variety synonym

Gymnocalycium quehlianum var. terweemeanum (Teucq ex Duursma) H.Till & Amerh. variety synonym

Gymnocalycium quehlianum var. stellatum (Speg.) Dölz variety synonym

Gymnocalycium quehlianum var. rolfianum Schick variety synonym

Gymnocalycium quehlianum subsp. leptanthum (Speg.) H.Till & Amerh. subspecies synonym

Gymnocalycium quehlianum var. flavispinum Bozsing ex Backeb. variety synonym

Gymnocalycium quehlianum var. calochlorum (Boed.) H.Till & Amerh. variety synonym

Gymnocalycium quehlianum var. albispinum Bozsing ex Backeb. variety synonym

Gymnocalycium pugionacanthum Backeb. species accepted

Gymnocalycium proliferum var. calochlorum (Boed.) Backeb. variety synonym

Gymnocalycium prolifer (Boed.) Backeb. species accepted

Gymnocalycium prochazkianum subsp. ivoi Halda & Milt subspecies synonym

Gymnocalycium poeschlii subsp. dolezalii Halda & Milt subspecies synonym

Gymnocalycium platygonum (H.Till & W.Till) Pilbeam species synonym

Gymnocalycium platense var. parvulum (Speg.) Y.Itô variety synonym

Gymnocalycium platense var. hyptiacanthum (Lem.) Backeb. variety synonym

Gymnocalycium piltziorum Schütz species synonym

Gymnocalycium paucispinum (Backeb. ex H.Till & W.Till) H.Till species synonym

Gymnocalycium parvulum subsp. huettneri F.Berger subspecies synonym

Gymnocalycium parvulum subsp. amoenum (H.Till) F.Berger subspecies synonym

Gymnocalycium paraguayense var. wieditzianum (F.Haage) Schütz variety synonym

Gymnocalycium paraguayense var. wagnerianum (F.Haage) Schütz variety synonym

Gymnocalycium paraguayense var. scheidelianum (F.Haage) Schütz variety synonym

Gymnocalycium paraguayense var. roseiflorum (Hildm. ex K.Schum.) Schütz variety synonym

Gymnocalycium paraguayense f. fleischerianum Mereg., Metzing & R.Kiesling form synonym

Gymnocalycium papschii H.Till species synonym

Gymnocalycium paediophilum F.Ritter species synonym

Gymnocalycium oenanthemum subsp. carminanthum (Borth & Koop) H.Till subspecies synonym

Gymnocalycium ochoterenae subsp. vatteri (Buining) Papsch subspecies synonym

Gymnocalycium ochoterenae var. variispinum Backeb. variety synonym

Gymnocalycium ochoterenae var. tenuispinum Backeb. variety synonym

Gymnocalycium ochoterenae var. scoparium H.Till & Neuhuber variety synonym

Gymnocalycium ochoterenae var. polygonum Backeb. variety synonym

Gymnocalycium ochoterenae subsp. herbsthoferianum H.Till & Neuhuber subspecies synonym

Gymnocalycium ochoterenae var. altautinense Papsch variety synonym

Gymnocalycium occultum (Fric ex H.Till & W.Till) H.Till species synonym

Gymnocalycium obductum Piltz species synonym

Gymnocalycium nigriareolatum var. simoi H.Till variety synonym

Gymnocalycium nigriareolatum var. densispinum Backeb. ex H.Till variety synonym

Gymnocalycium nigriareolatum f. carmineum H.Till form synonym

Gymnocalycium nidulans Backeb. species synonym

Gymnocalycium neuhuberi H.Till & W.Till species accepted

Gymnocalycium netrelianum (Monv. ex Labour.) Britton & Rose species synonym

Gymnocalycium nataliae Neuhuber species synonym

Gymnocalycium mostii subsp. valnicekianum (Jajó) Mereg. & G.J.Charles subspecies synonym

Gymnocalycium mostii var. miradorense H.Till & Amerh. variety synonym

Gymnocalycium mostii f. kurtzianum (Gürke) H.Till & Amerh. form synonym

Gymnocalycium mostii var. immemoratum (A.Cast. & H.V.Lelong) H.Till & Amerh. variety synonym

Gymnocalycium moserianum Schütz species synonym

Gymnocalycium miltii Halda, Kupcák, Lukasik & Sladk. species synonym

Gymnocalycium mihanovichii f. nigrum Y.Itô form synonym

Gymnocalycium mihanovichii var. friedrichii Werderm. variety synonym

Gymnocalycium mihanovichii var. filadelfiense Backeb. variety synonym

Gymnocalycium mihanovichii var. albiflorum Pazout variety synonym

Gymnocalycium mesopotamicum R.Kiesling species accepted

Gymnocalycium melanocarpum (Arech.) Britton & Rose species synonym

Gymnocalycium megalothelon subsp. prestleanum H.Till subspecies synonym

Gymnocalycium mazanense var. rhodantherum (Boed.) Backeb. variety synonym

Gymnocalycium marianae Perea, O.Ferrari, Las Peñas & R.Kiesling species synonym

Gymnocalycium lukasikii subsp. emilii Halda & Milt subspecies synonym

Gymnocalycium leptanthum (Speg.) Speg. species synonym

Gymnocalycium leeanum var. roseiflorum Y.Itô variety synonym

Gymnocalycium leeanum var. netrelianum (Monv. ex Labour.) Backeb. variety synonym

Gymnocalycium lafaldense f. hossei (Backeb.) Oehme form synonym

Gymnocalycium lafaldense f. fraternum Oehme form synonym

Gymnocalycium lafaldense f. evolvens Oehme form synonym

Gymnocalycium lafaldense f. enorme Oehme form synonym

Gymnocalycium lafaldense f. deviatum Oehme form synonym

Gymnocalycium lafaldense f. albispinum (Backeb.) Oehme form synonym

Gymnocalycium kurtzianum (Gürke) Britton & Rose species synonym

Gymnocalycium kuehhasii Neuhuber & R.Sperling species accepted

Gymnocalycium kroenleinii R.Kiesling, Rausch & O.Ferrari species accepted

Gymnocalycium kozelskyanum Schütz species synonym

Gymnocalycium kieslingii f. castaneum O.Ferrari form synonym

Gymnocalycium kieslingii f. alboareolatum O.Ferrari form synonym

Gymnocalycium joossensianum (Boed.) Britton & Rose species synonym

Gymnocalycium jochumii var. jugum Neuhuber variety synonym

Gymnocalycium intertextum f. moserianum J.G.Lamb. form synonym

Gymnocalycium immemoratum A.Cast. & H.V.Lelong species synonym

Gymnocalycium hyptiacanthum subsp. uruguayense (Arechav.) Mereg. subspecies synonym

Gymnocalycium hyptiacanthum subsp. schroederianum (Osten) Papsch subspecies synonym

Gymnocalycium hyptiacanthum subsp. paucicostatum (R.Kiesling) Papsch subspecies synonym

Gymnocalycium hyptiacanthum subsp. netrelianum (Monv. ex Labour.) Mereg. subspecies synonym

Gymnocalycium hossei var. nidulans (Backeb.) H.Till variety synonym

Gymnocalycium hossei var. crassispinum Y.Itô variety synonym

Gymnocalycium hossei var. breviflorum (Backeb.) H.Till variety synonym

Gymnocalycium hammerschmidii Backeb. species synonym

Gymnocalycium guerkeanum (Heese) Britton & Rose species synonym

Gymnocalycium guanchinense Schütz species synonym

Gymnocalycium gibbosum var. hyptiacanthum (Lem.) Y.Itô variety synonym

Gymnocalycium gaponii subsp. geyeri Neuhuber & V.Gapon subspecies synonym

Gymnocalycium friedrichii var. moseranum Pazout ex Moser variety synonym

Gymnocalycium friedrichii var. albiflorum (Paz.) Schütz, 1980 variety synonym

Gymnocalycium frankianum Rausch ex H.Till & Amerh. species synonym

Gymnocalycium fleischerianum var. anoplum Y.Itô variety synonym

Gymnocalycium fischeri subsp. suyuquense F.Berger subspecies synonym

Gymnocalycium eurypleurum F.Ritter ex Plesník species accepted

Gymnocalycium erolesii Neuhuber & C.A.L.Bercht species synonym

Gymnocalycium erinaceum var. paucisquamosum Piltz variety synonym

Gymnocalycium denudatum var. wieditzianum (F.Haage) Y.Itô variety synonym

Gymnocalycium denudatum var. wagnerianum (F.Haage) Y.Itô variety synonym

Gymnocalycium denudatum var. scheidelianum (F.Haage) Y.Itô, 1957 variety synonym

Gymnocalycium denudatum var. roseiflorum (Hildm. ex K.Schum.) Borg variety synonym

Gymnocalycium denudatum var. paraguayense (K.Schum.) Borg variety synonym

Gymnocalycium denudatum subsp. necopinum Prestlé subspecies synonym

Gymnocalycium denudatum var. meiklejohnianum (F.Haage) Y.Itô variety synonym

Gymnocalycium denudatum var. heuschkelianum (F.Haage) Y.Itô variety synonym

Gymnocalycium denudatum var. bruennowianum (F.Haage) Borg variety synonym

Gymnocalycium denudatum var. argentinense Y.Itô, 1981 variety synonym

Gymnocalycium denudatum subsp. angelae (Mereg.) Prestlé subspecies synonym

Gymnocalycium denudatum var. andersohnianum (F.Haage) Y.Itô variety synonym

Gymnocalycium deeszianum Dölz species synonym

Gymnocalycium damsii var. tucavocense Backeb. variety synonym

Gymnocalycium damsii var. torulosum Backeb. ex H.Till & Amerh. variety synonym

Gymnocalycium damsii var. rotundulum Backeb. ex H.Till & Amerh. variety synonym

Gymnocalycium damsii var. multiproliferum P.J.Braun variety synonym

Gymnocalycium damsii subsp. evae Halda, Horácek & Milt subspecies synonym

Gymnocalycium damsii var. centrispinum Backeb. ex H.Till & Amerh. variety synonym

Gymnocalycium damsii var. boosii Amerh. variety synonym

Gymnocalycium coloradense F.Berger species synonym

Gymnocalycium chiquitanum var. hammerschmidii (Backeb.) H.Till variety synonym

Pyrrhocactus centeterius (Lehm. ex Pfeiff.) A.Berger species synonym

Gymnocalycium centeterium (Lehm. ex Pfeiff.) Hosseus species synonym

Gymnocalycium catamarcense f. montanum H.Till & W.Till form synonym

Gymnocalycium catamarcense f. ensispinum H.Till & W.Till form synonym

Gymnocalycium catamarcense f. belense H.Till & W.Till form synonym

Gymnocalycium castellanosii subsp. acorrugatum (J.G.Lamb.) G.J.Charles subspecies synonym

Gymnocalycium carolinense (Neuhuber) Neuhuber species synonym

Gymnocalycium carminanthum var. montanum Slaba variety synonym

Gymnocalycium calochlorum var. proliferum (Backeb.) Backeb. variety synonym

Gymnocalycium bruchii f. svecianum (Pazout ex H.Till) Neuhuber form synonym

Gymnocalycium bruchii subsp. susannae Neuhuber subspecies synonym

Gymnocalycium bruchii subsp. shimadae Neuhuber subspecies synonym

Gymnocalycium bruchii var. rubroalabastrum Neuhuber variety synonym

Gymnocalycium bruchii subsp. renatae Neuhuber subspecies synonym

Gymnocalycium bruchii subsp. pawlovskyi Neuhuber subspecies synonym

Gymnocalycium bruchii var. niveum Rausch variety synonym

Gymnocalycium bruchii subsp. melojeri Neuhuber subspecies synonym

Gymnocalycium bruchii subsp. lafaldense (Vaupel) Neuhuber subspecies synonym

Gymnocalycium bruchii subsp. lacumbrense Neuhuber subspecies synonym

Gymnocalycium bruchii var. hossei Backeb. variety synonym

Gymnocalycium bruchii var. glaucum Neuhuber variety synonym

Gymnocalycium bruchii subsp. cumbresitense Neuhuber subspecies synonym

Gymnocalycium bruchii f. cristata Hosseus form synonym

Gymnocalycium bruchii var. brigittae Piltz variety synonym

Gymnocalycium bodenbenderianum subsp. intertextum (Backeb. ex H.Till) H.Till subspecies synonym

Gymnocalycium bicolor Schütz species synonym

Gymnocalycium berchtii Neuhuber species accepted

Gymnocalycium bayrianum H.Till ex H.Till species accepted

Gymnocalycium baldianum var. albiflorum C.A.L.Bercht variety synonym

Gymnocalycium asterium var. paucispinum Backeb. variety synonym

Gymnocalycium asterium var. minimum Pazout variety synonym

Gymnocalycium artigas Herter species synonym

Gymnocalycium anisitsii subsp. volkeri Amerh. subspecies synonym

Gymnocalycium anisitsii var. tucavocense Backeb. ex H.Till & Amerh. variety synonym

Gymnocalycium anisitsii var. pseudomalacocarpus Backeb. ex H.Till & Amerh. variety synonym

Gymnocalycium anisitsii subsp. multiproliferum (P.J.Braun) P.J.Braun & Esteves subspecies synonym

Gymnocalycium anisitsii subsp. holdii Amerh. subspecies synonym

Gymnocalycium anisitsii var. griseopallidum H.Till & Amerh. variety synonym

Gymnocalycium anisitsii subsp. damsii (K.Schum.) G.J.Charles subspecies synonym

Gymnocalycium walteri H.Till species synonym

Gymnocalycium angelae Mereg. species synonym

Gymnocalycium weissianum Backeb. species synonym

Gymnocalycium andreae f. svecianum Pazout ex H.Till form synonym

Gymnocalycium andreae subsp. matznetteri Rausch subspecies synonym

Gymnocalycium weissianum var. atroroseum Backeb. variety synonym

Gymnocalycium andreae var. longispinum Rausch variety synonym

Gymnocalycium andreae var. grandiflorum Krainz variety synonym

Gymnocalycium andreae var. fechseri H.Till variety synonym

Gymnocalycium andreae subsp. carolinense Neuhuber subspecies synonym

Gymnocalycium amoenum (H.Till) J.G.Lamb. species synonym

Gymnocalycium amerhauseri subsp. altagraciense H.Till & Amerh. subspecies synonym

Gymnocalycium alboareolatum var. ramosum Rausch variety synonym

Frailea bruchii Speg. species synonym

Echinocactus uruguayensis f. depressus Osten form synonym

Echinocactus sutterianus Schick ex A.Berger species synonym

Echinocactus stellatus Speg. species heterotypic synonym

Echinocactus sigelianus Schick ex A.Berger species synonym

Echinocactus sanguiniflorus Werderm. species synonym

Echinocactus saglionis Cels species synonym

Echinocactus rhodantherus Boed. species synonym

Echinocactus quehlianus F.Haage ex H.Quehl species synonym

Echinocactus prolifer Backeb. species synonym

Gymnocalycium bruchii subsp. cumbrecitense Neuhuber subspecies synonym

Gymnocalycium rosei H.Till species synonym

Gymnocalycium victorii Neuhuber species accepted

Gymnocalycium anisitsii subsp. tucavocense (Backeb. ex H.Till & Amerh.) Schädlich subspecies synonym

Gymnocalycium bicolor subsp. simplex (Repka) V.Gapon subspecies synonym

Gymnocalycium oenanthemum subsp. ambatoense (Piltz) Lodé subspecies synonym

Gymnocalycium megatae subsp. holdii (Amerh.) Schädlich subspecies synonym

Gymnocalycium bicolor (Repka) V.Gapon species synonym

Gymnocalycium ×applanatum Repka & Frélich species accepted

Gymnocalycium marekiorum var. guaraniorum Schädlich variety synonym

Gymnocalycium prochazkanum subsp. ivoi Halda & Milt subspecies synonym

Gymnocalycium denudatum (Link & Otto) Pfeiff. ex Forster species synonym

Gymnocalycium occultum Fric ex Schütz species synonym

Gymnocalycium riojense Fric ex H.Till & W.Till species synonym

Echinocactus leptanthus Speg. species synonym

Echinocactus denudatus var. anisitsii Fric variety synonym

Echinocactus denudatus var. delaetianus F.Haage variety proparte synonym

Echinocactus denudatus var. flavispinus Schelle variety synonym

Gymnocalycium pediophylum Schütz species accepted

Gymnocalycium bruchii subsp. elegans Neuhuber subspecies synonym

Gymnocalycium eurypleurum F.Ritter species synonym

Echinocactus netrelianus Monv. species homotypic synonym

Echinocactus megalothelon Sencke ex K.Schum. species synonym

Gymnocalycium denudatum (Link & Otto) Pfeiff. species synonym

Echinocactus platensis var. quehlianus Speg. variety synonym

Gymnocalycium ochoterenae var. cinereum Backeb. variety synonym

Gymnocalycium damsii subsp. multiproliferum P.J.Braun subspecies synonym

Echinocactus hossei F.Haage species synonym

Gymnocalycium gertii V.Gapon & Schelkun. species synonym

Echinocactus denudatus var. bruennowianus F.Haage variety synonym

Echinocactus centiterius Lehm. ex Pfeiff. species synonym

Cereus denudatus (Link & Otto) Hort.Berol. species homotypic synonym

Gymnocalycium striglianum Jeggle ex H.Till species synonym

Gymnocalycium castellanosii subsp. acorrugatum (J.G.Lamb.) R.Kiesling & Metzing subspecies synonym

Gymnocalycium morroense Kulhánek, Repka & J.Proch. species synonym

Echinocactus denudatus var. golzianus F.Haage variety synonym

Gymnocalycium tillianum subsp. montanum (Slaba) F.Berger subspecies synonym

Gymnocalycium intertextum Backeb. ex H.Till species synonym

Echinocactus denudatus var. scheidelianus F.Haage variety synonym

Gymnocalycium michoga Backeb. species accepted

Gymnocalycium monvillei (Lem.) Pfeiff. species homotypic synonym

Echinocactus capillaense Schick species synonym

Gymnocalycium esperanzae Repka & Kulhánek species accepted

Gymnocalycium andreae f. svecianum Pazout ex W.Till form synonym

Gymnocalycium quehlianum (F.Haage ex Quehl) Vaupel species synonym

Gymnocalycium vatteri var. altautinense (Papsch) V.Gapon variety synonym

Gymnocalycium riojense subsp. vertongenii Amerh. subspecies synonym

Gymnocalycium damsii var. torulosum Backeb. variety synonym

Gymnocalycium bruchii subsp. atroviride Neuhuber subspecies synonym

Gymnocalycium fleischerianum Jojo ex Backeb. & F.M.Knuth species synonym

Echinocactus quehlianus F.Haage species homotypic synonym

Echinocactus denudatus var. intermedius Hildm. variety synonym

Cereus reductus Link species synonym

Gymnocalycium damsii var. rotundulum Backeb. variety synonym

Gymnocalycium capillaense (Schick) Hosseus species accepted

Gymnocalycium bruchii subsp. multicostatum Neuhuber subspecies synonym

Gymnocalycium friedrichii var. moseranum Pazout variety homotypic synonym

Gymnocalycium villosum Pfeiff. species homotypic synonym

Echinocactus platensis var. terweemeanus Teucq variety homotypic synonym

Gymnocalycium riojense subsp. kozelskyanum Schütz subspecies homotypic synonym

Gymnocalycium anisitsii var. tucavocense Backeb. variety homotypic synonym

Gymnocalycium paraguayense (K.Schum.) Schütz species synonym

Gymnocalycium quehlianum var. flavispinum Bozsing variety homotypic synonym

Gymnocalycium venturi Frič species homotypic synonym

Gymnocalycium fleischerianum Jojo species homotypic synonym

Echinocactus ourselianus Cels species homotypic synonym

Gymnocalycium riojense subsp. paucispinum Backeb. subspecies homotypic synonym

Gymnocalycium stellatum subsp. occultum Fric subspecies homotypic synonym

Gymnocalycium stellatum var. flavispinum Bozsing variety homotypic synonym

Echinocactus megalothelon Sencke species homotypic synonym

Gymnocalycium andreae f. svecianum Pazout form homotypic synonym

Gymnocalycium riojense Fric species homotypic synonym

Gymnocalycium riojense subsp. piltziorum Schütz subspecies homotypic synonym

Gymnocalycium quehlianum var. albispinum Bozsing variety homotypic synonym

Gymnocalycium occultum Fric species homotypic synonym

Gymnocalycium marsoneri Fric species homotypic synonym

Gymnocalycium frankianum Rausch species homotypic synonym

Gymnocalycium valnicekianum Jojo species homotypic synonym

Gymnocalycium riojense var. platygonum Schütz variety homotypic synonym

Gymnocalycium stellatum var. kleinianum Rausch variety homotypic synonym

Gymnocalycium nigriareolatum var. densispinum Backeb. variety homotypic synonym

Gymnocalycium anisitsii var. pseudomalacocarpus Backeb. variety homotypic synonym

Echinocactus centiterius Lehm. species homotypic synonym