= Echinocactus minusculus (K.Schum.) F.A.C.Weber; Dict. Hort. [Bois] 1: 467 (1896)
= Echinopsis minuscula (K.Schum.) F.A.C.Weber; Dict. Hort. [Bois] 467 (1896)
= Eurebutia minuscula (K.Schum.) G.van de Weghe; Cactus (Mont St. Amaud) 8: 108 (1938), Issue 160
= Rebutia australis Mottram & V.Gapon; Cact. Explor. 16: 38 (2016)
= Rebutia calliantha var. kariusiana (Wessner) Buining & Donald; Cact. Succ. J. Gr. Brit. 27: 41 (1965)
= Rebutia carminea Buining; Succulenta (Netherlands) 23: 27 (1941)
= Rebutia chrysacantha Backeb.; Kaktus-ABC [Backeberg & Knuth] 276, 416 (1935)
= Rebutia chrysacantha subsp. kesselringiana (Backeb.) Donald
= Rebutia chrysacantha var. elegans (Backeb.) Backeb.; Cactaceae [Backeberg] 4: 1539 (1959)
= Rebutia chrysacantha var. iseliniana (Krainz) Donald ex Sída; Rod Rebutia 18 (1997)
= Rebutia chrysacantha var. kesselringiana (Bewer.) Donald ex Sída, Rod Rebutia 18 (1997)
= Rebutia chrysacantha var. schieliana (Bewer.) Sída; Rod Rebutia 18 (1997)
= Rebutia citricarpa Fric; Möller´s Deutsche Gärtn.-Zeitung 47: 421, et ex Backeb. & M. Knuth, Kaktus-ABC [Backeberg & Knuth] 279 (1935 publ. 1932)
= Rebutia dasyphrissa Werderm.; Repert. Spec. Nov. Regni Veg. Sonderbeih. C: t. 103 (1935)
= Rebutia graciliflora Backeb.; Descr. Cact. Nov. [Backeberg] 3: 13 (1963)
= Rebutia grandiflora Backeb.; Kaktus-ABC [Backeberg & Knuth] 277, 416 (1935)
= Rebutia kariusiana Wessner; Kakteen And. Sukk. 14: 149 (1963)
= Rebutia knuthiana Backeb.; Kaktus-ABC [Backeberg & Knuth] 277, 416 (1935)
= Rebutia marsoneri f. sieperdaiana (Buining) Buining & Donald; Sukkulentenkunde 7/8: 103 (1963)
= Rebutia marsoneri var. sieperdaiana (Buining) Donald; Cactus (Paris) 40: 39 (1954)
= Rebutia minuscula f. kariusiana (Wessner) Donald; Ashingtonia 2(3): 43 (1975)
= Rebutia minuscula f. knuthiana (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia minuscula f. violaciflora (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia minuscula subsp. grandiflora (Backeb.) Donald; Ashingtonia 2(3): 43 (1975)
= Rebutia minuscula subsp. violaciflora (Backeb.) Donald; Ashingtonia 2(3): 43 (1975)
= Rebutia minuscula var. grandiflora (Backeb.) Krainz; Kakteen [H.Krainz] 14: C Vc (1960)
= Rebutia minuscula var. iseliniana Krainz
= Rebutia minuscula var. kariusiana (Wessner) Buining & Donald
= Rebutia minuscula var. kesselringiana Bewer.
= Rebutia minuscula var. knuthiana (Backeb.) Buining & Donald
= Rebutia minuscula var. lilacinorosea Backeb.
= Rebutia minuscula var. minuscula f.violaciflora (Backeb.) Buining & Donald
= Rebutia minuscula var. violaciflora (Backeb.) Buining & Donald
= Rebutia permutata var. gokrausei Heinr.
= Rebutia senilis Backeb.; Kakteen-Freund 1: 124 (1932), Werderm. in Repert. Spec. Nov. Regni Veg. Sonderbeih. C, t. 103 (1935), Backeb. in Kaktus-ABC [Backeberg & Knuth] 277, 416 (1935)
= Rebutia senilis f. chrysacantha (Backeb.) Buining & Donald; Cact. Succ. J. Gr. Brit. 27: 38 (1965)
= Rebutia senilis f. elegans (Backeb. ex Krainz) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia senilis f. iseliniana (Krainz) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia senilis f. kesselringiana (Bewer.) Buining & Donald; Sukkulentenkunde 7/8: 100 (1963)
= Rebutia senilis f. lilacinorosea (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia senilis f. schieliana (Bewer.) Donald; Ashingtonia 2: 50 (1975)
= Rebutia senilis f. stuemeri (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 99 (1963)
= Rebutia senilis subsp. chrysacantha (Backeb.) Donald; Ashingtonia 2: 50 (1975)
= Rebutia senilis var. aurescens Backeb.; Kaktus-ABC [Backeberg & Knuth] 416 (1936)
= Rebutia senilis var. chrysacantha (Backeb.) Donald; Cactus (Paris) 40: 39 (1954)
= Rebutia senilis var. elegans Backeb. ex Krainz; Sukkulentenkunde 1: 21 (1947)
= Rebutia senilis var. iseliniana Krainz; Schweizer Gart. 1945: 284 (1945)
= Rebutia senilis var. kesselringiana Bewer.; Sukkulentenkunde 1: 9 (1947)
= Rebutia senilis var. lilacinorosea Backeb.; Kaktus-ABC [Backeberg & Knuth] 416 (1936)
= Rebutia senilis var. schieliana Bewer.; Kakteen And. Sukk. 8: 105 (1957)
= Rebutia senilis var. semperflorens Poind.
= Rebutia senilis var. sieperdaiana (Buining) Backeb.; Cactaceae [Backeberg] 4: 1546 (1959)
= Rebutia senilis var. stuemeri Backeb.; Kakteen-Freund 1: 131 (1932)
= Rebutia senilis var. stuemeriana Backeb.; Kaktus-ABC [Backeberg & Knuth] 416 (1936)
= Rebutia senilis var. xanthocarpa (Backeb.) W.T.Marshall; Cactus (Paris) 14: 30 (1938)
= Rebutia sieperdaiana Buining; Succulenta (Netherlands) 23: 15 (1941)
= Rebutia stuemeriana (Backeb.) Backeb.; Desert Pl. Life 18: 152 (1946)
= Rebutia violaciflora Backeb.; Blätt. Kakteenf. 8: 8 (1935)
= Rebutia violaciflora var. carminea (Buining) Donald; Natl. Cact. Succ. J. 12: 11 (1957)
= Rebutia violaciflora var. knuthiana (Backeb.) Donald; Natl. Cact. Succ. J. 12: 11 (1957)
= Rebutia wessneriana f. permutata (Heinrich) Donald; Ashingtonia 2: 71 (1976), nom. inval.
= Rebutia xanthocarpa Backeb.; Kakteen-Freund 1: 131 (1932), Issue 143, et Kaktus-ABC [Backeberg & Knuth] 278, 416 (1935)
= Rebutia xanthocarpa f. citricarpa (Fric ex Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 100 (1963)
= Rebutia xanthocarpa f. dasyphrissa (Werderm.) Buining & Donald; Sukkulentenkunde 7/8: 100 (1963)
= Rebutia xanthocarpa f. graciliflora (Backeb.) Donald; Ashingtonia 2(3): 50 (1975)
= Rebutia xanthocarpa f. salmonea (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 100 (1963)
= Rebutia xanthocarpa f. violaciflora (Backeb.) Buining & Donald; Sukkulentenkunde 7/8: 100 (1963)
= Rebutia xanthocarpa var. citricarpa Fric ex Backeb.; Cact. Succ. J. (Los Angeles) 23: 83 (1951)
= Rebutia xanthocarpa var. coerulescens Backeb.; Descr. Cact. Nov. [Backeberg] 1: 31 (1956 publ. 1957)
= Rebutia xanthocarpa var. dasyphrissa (Werderm.) Backeb.; Beitr. Sukkulentenk. Sukkulentenpflege 1939: 3 (1939)
= Rebutia xanthocarpa var. elegans Backeb.; Cact. Succ. J. (Los Angeles) 23: 83 (1951)
= Rebutia xanthocarpa var. graciliflora Backeb. ex Sída; Rod Rebutia 18 (1997)
= Rebutia xanthocarpa var. luteirosea Backeb.; Cact. Succ. J. (Los Angeles) 23: 83 (1951)
= Rebutia xanthocarpa var. salmonea Backeb.; Cact. Succ. J. (Los Angeles) 23: 83 (1951)
= Rebutia xanthocarpa var. violaciflora (Backeb.) Backeb.; Descr. Cact. Nov. [Backeberg] 1: 31 (1956 publ. 1957), no basionym cited.