= Cataputia major Ludw.; Ectyp, t. 7
= Cataputia minor Ludw.; Gen. 81
= Croton spinosus L.; Sp. Pl. 1005 (1753)
= Ricinus africanus Mill.; Gard. Dict. ed. VIII. n. 5 (1768)
= Ricinus angulatus Thunb.; Diss. Ricin. 6 (1815)
= Ricinus armatus Andrews; Bot. Rep, t. 430 (1805)
= Ricinus atropurpureus Pax & K.Hoffm.; Engl. Pflanzenr. Euphorb.-Plukenetiin. Epiprinin.-Ricinin. 126 (1919)
= Ricinus badius Rchb.; Ic. Bot. Exot. 2: 21, t. 154 (1829)
= Ricinus borboniensis pax & K.Hoffm.; Engl. Pflanzenr. Euphorb.-Plukenetiin. Epiprinin.-Ricinin. 126 (1919)
= Ricinus cambodgensis Benary; Gartenfl. 36: 102 (1887)
= Ricinus communis subsp. africanus (Mill.) Nyman; Consp. Fl. Eur. 647 (1881)
= Ricinus communis subsp. indicus Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 35 (1980)
= Ricinus communis subsp. manshuricus V.Bork.; Descr. Var. Azcherkraya 106 (1936)
= Ricinus communis subsp. mexicanus Popova; Bukasov S. M. Vozdelyv. Rast. Meksiki 409 (1931)
= Ricinus communis subsp. persicus Popova; Kleshchevina izd. VIR 27 (1930)
= Ricinus communis subsp. ruderalis Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 38 (1980)
= Ricinus communis subsp. sanguineus Popova; Kleshchevina izd. VIR 35 (1930)
= Ricinus communis subsp. scaber (Bertol. ex Moris) Nyman; Consp. Fl. Eur. 647 (1881)
= Ricinus communis subsp. sinensis Hiltebr.; Mirov. Rast. Res. 63 (1935)
= Ricinus communis subsp. sinensis Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 34 (1980)
= Ricinus communis subsp. zanzibarinus Popova; Kleshchevina izd. VIR 43 (1930)
= Ricinus communis var. aegyptiacus (Popova) Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 40 (1980)
= Ricinus communis var. africanus (Willd.) Müll.Arg.; Prodr. [A. DC.] 15(2): 1019 (1866)
= Ricinus communis var. albus Merrem; 445 (1809)
= Ricinus communis var. badius (Rchb.) Müll.Arg.; Prodr. [A. DC.] 15(2): 1019 (1866)
= Ricinus communis var. bailundensis J.M.Coult.; Bull. Soc. Portug. Sci. Nat. 1918: 82 (1918)
= Ricinus communis var. benguelensis Müll.Arg.; J. Bot. 1: 337 (1864)
= Ricinus communis var. borboniensis André; Pl. Feuill. Ornem. 206 (1866)
= Ricinus communis var. brevinodis Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 32 (1980)
= Ricinus communis var. caesius Popova; Kul´t. Fl. SSSR 7: 287 (1941)
= Ricinus communis var. giganteus André; Pl. Feuill. Ornem. 206 (1866)
= Ricinus communis var. glaucus Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 37 (1980)
= Ricinus communis var. griseofolius Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 36 (1980)
= Ricinus communis var. indehiscens Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 33 (1980)
= Ricinus communis var. inermis (Mill.) Pax & K.Hoffm.; Pflanzenr. IV, 147, XI: 122 (1919)
= Ricinus communis var. japonicus Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 35 (1980)
= Ricinus communis var. lividus (Jacq.) Müll.Arg.; Prodr. [A. DC.] 15(2): 1018 (1866)
= Ricinus communis var. megalospermus (Delile) Müll.Arg.; Prodr. [A. DC.] 15(2): 1017 (1866)
= Ricinus communis var. mexicanus (Popova) Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 40 (1980)
= Ricinus communis var. microcarpus Müll.Arg.; Prodr. [A. DC.] 15(2): 1020 (1866)
= Ricinus communis var. microspermus Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 31 (1980)
= Ricinus communis var. nanus Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 38 (1980)
= Ricinus communis var. purpurascens (Bertol.) Müll.Arg.; Prodr. [A. DC.] 15(2): 1018 (1866)
= Ricinus communis var. reichenbachianus Müll.Arg.; Prodr. [A. DC.] 15(2): 1019 (1866)
= Ricinus communis var. rheedianus Müll.Arg.; Prodr. [A. DC.] 15(2): 1020 (1866)
= Ricinus communis var. roseus Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 31 (1980)
= Ricinus communis var. ruber Merrem; 445 (1809)
= Ricinus communis var. rubescens Herder; Index Seminum (LE, Petropolitanus) 1868: 91 (1869)
= Ricinus communis var. rugosus Müll.Arg.; Prodr. [A. DC.] 15(2): 1018 (1866)
= Ricinus communis var. sanguineus Baill.; Recueil Observ. Bot. 1: 342 (1861)
= Ricinus communis var. speciosus (Burm.f.) Müll.Arg.; Prodr. [A. DC.] 15(2): 1021 (1866)
= Ricinus communis var. spontaneus Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 39 (1980)
= Ricinus communis var. vasconcellosii T.Carvalho; Anais Junta Invest. Ultramar 11(4): 33 (1956)
= Ricinus communis var. violaceocaulis Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 34 (1980)
= Ricinus communis var. virens Popova; Kul´t. Fl. SSSR 7: 290 (1941)
= Ricinus communis var. viridis Popova & Moshkin; Kleshchevina (Nauch. Trudy Vasknil): 32 (1980)
= Ricinus digitatus Noronha; Verh. Batav. Gen. 5: (1790) ed. I. Art. IV. 26
= Ricinus europaeus T.Nees; Gen. Pl. Monochl, t. 38
= Ricinus giganteus Pax & K.Hoffm.; Engl. Pflanzenr. Euphorb.-Plukenetiin. Epiprinin.-Ricinin. 126 (1919)
= Ricinus glaucus Hoffmanns.; Verz. Pfl. Nachtr. 2: 199 (1826)
= Ricinus hybridus Besser; Cat. Hort. Crem. (1816) Suppl. 2: 13
= Ricinus inermis Mill.; Gard. Dict. ed. VIII. n. 6 (1768), Jacq. Misc. 2: 362
= Ricinus japonicus Thunb.; Diss. Ricin. 4 (1815)
= Ricinus krappa Hort.Berol. ex Steud.; Nom. ed. II. 2: 459 (1841)
= Ricinus laevis DC.; Not. Jard. Genev. 1: 31 (1823)
= Ricinus leucocarpus Bertol.; Giorn. Arcad. 21: (1824) 192 (bis)
= Ricinus lividus Jacq.; Misc. 2: 360
= Ricinus macrocarpus Steud.; Nom. ed. II. 2: 459 (1841)
= Ricinus macrocarpus Popova; Fl. Cult. Pl., USSR, ed. Vavilov et al., VII. (Oleiferous Plants) 278 (1941),rossice.
= Ricinus macrocarpus var. nudus Popova; Kul´t. Fl. SSSR 7: 287 (1941)
= Ricinus macrophyllus Bertol.; Giorn. Arcadico Sci. 21: 192 (1824)
= Ricinus medicus Forssk.; Fl. Aegypt. Arab. 164 (1775)
= Ricinus medius J.F.Gmel.; Syst. 1615
= Ricinus megalosperma Delile; Cent. Pl. Meroe, 89
= Ricinus metallicus Pax & K.Hoffm.; Engl. Pflanzenr. Euphorb.-Plukenetiin. Epiprinin.-Ricinin. 126 (1919)
= Ricinus microcarpus Popova; Fl. Cult. Pl., USSR, ed. Vavilov et al., VII. (Oleiferous Plants) 287 (1941),rossice.
= Ricinus microcarpus var. atrovirens Popova; Kul´t. Fl. SSSR 7: 290 (1941)
= Ricinus microcarpus var. spontaneus Popova; Kul´t. Fl. SSSR 7: 288 (1941)
= Ricinus minor Mill.; Gard. Dict. ed. VIII. n. 7 (1768)
= Ricinus nanus Balb.; Cat. Hort. Bot. Taurin. 65 (1813)
= Ricinus obermanni Groenland; Rev. Hortic. Ser. IV. 7: 601 (1858)
= Ricinus peltatus Noronha; Verh. Batav. Gen. 5: (1790) ed. I. Art. IV. 25
= Ricinus perennis Steud.; Nom. ed. II. 2: 459 (1841)
= Ricinus persicus Popova; Bull. Applied Bot., Leningrad, 16: 229 (1926)
= Ricinus purpurascens Bertol.; Misc. Bot. 9: 4 (1851)
= Ricinus ruber Miq.; Fl. Ned. Ind. 1: 390 (1859)
= Ricinus rugosus Mill.; Gard. Dict. ed. VIII. n. 4 (1768)
= Ricinus rutilans Müll.Arg.; Prodr. [A. DC.] 15(2): 1017 (1866)
= Ricinus sanguineus Groenland; Rev. Hortic. Ser. IV. 7: 601 (1858)
= Ricinus scaber Bertol. ex Moris; Stirp. Sard. Elench. 41
= Ricinus speciosus Burm. f. [Fl.Ind.207 (1768)]
= Ricinus spectabilis Blume; Bijdr. Fl. Ned. Ind. 623 (1826)
= Ricinus tunisensis Desf.; Cat. Hort. Par. ed. III. 340 (1829)
= Ricinus undulatus Besser; Cat. Hort. Bot. Krzem. 90 (1811)
= Ricinus urens Mill.; Gard. Dict. ed. VIII. n. 3
= Ricinus viridis Willd.; Sp. Pl. 4: 564 (1806)
= Ricinus vulgaris Garsault; Fig. Pl. Anim. Med, t. 66 (1764), Descr. Pl. Anim. 50 (1767), Thell. in Bull. Herb. Boissier Ser. II. 8: 784
= Ricinus vulgaris Mill.; Gard. Dict. ed. VIII. n. 1 (1768)
= Ricinus zanzibarensis Hort.; ex Illustr. Hortic. 41: (1894) 99, fig. 19
= Ricinus zanzibarinus Popova; Fl. Cult. Pl., USSR, ed. Vavilov et al., VII. (Oleiferous Plants) 292 (1941), rossice