| Ricinus communis f. zollingeri Müll. Arg., 1866 |
| Ricinus communis f. zonatus T. Carvalho, 1956 |
| Ricinus communis subsp. indicus Popova & Moshkin, 1980 |
| Ricinus communis subsp. mexicanus Popova, 1931 |
| Ricinus communis subsp. persicus Popova, 1930 |
| Ricinus communis subsp. ruderalis Popova & Moshkin, 1980 |
| Ricinus communis subsp. sanguineus Popova, 1930 |
| Ricinus communis subsp. sinensis Hiltebr., 1935 |
| Ricinus communis subsp. zanzibarinus Popova, 1930 |
| Ricinus communis var. aegypticeus (Popova) Moshkin, 1980 |
| Ricinus communis var. africanus Müll. Arg., 1866 |
| Ricinus communis var. amblyocalyx Müll. Arg., 1866 |
| Ricinus communis var. armatus (Andr.) Müll. Arg., 1866 |
| Ricinus communis var. badius (Rchb.) Müll. Arg., 1866 |
| Ricinus communis var. bailundensis J.M. Coult., 1918 |
| Ricinus communis var. benguelensis Müll. Arg., 1864 |
| Ricinus communis var. brasilensis Müll. Arg. ex Pax & K. Hoffm., 1919 |
| Ricinus communis var. brevinodis Moshkin, 1980 |
| Ricinus communis var. caesius Popova, 1941 |
| Ricinus communis var. genuinus Müll. Arg., 1866 |