| Ionoxalis alpina Rose | Oxalis alpina (Rose) Rose ex R.Knuth |
| Ionoxalis amplifolia (Trel.) Rose | Oxalis drummondii A.Gray |
| Ionoxalis caerulea Small | Oxalis caerulea (Small) R.Knuth |
| Ionoxalis compacta Rose | Oxalis alpina (Rose) Rose ex R.Knuth |
| Ionoxalis confusa Rose | Oxalis decaphylla Kunth |
| Ionoxalis conzattiana Rose | Oxalis lasiandra Zucc. |
| Ionoxalis cuernavacana Rose | Oxalis tetraphylla Cav. |
| Ionoxalis decaphylla (Kunth) Rose | Oxalis decaphylla Kunth |
| Ionoxalis deppei (Lodd. ex Sweet) Small | Oxalis tetraphylla Cav. |
| Ionoxalis discolor (Klotzsch) Small | Oxalis discolor Klotzsch |
| Ionoxalis divaricata Small | Oxalis tetraphylla Cav. |
| Ionoxalis drummondii (A.Gray) Rose | Oxalis drummondii A.Gray |
| Ionoxalis furcata Rose | Oxalis decaphylla Kunth |
| Ionoxalis gonzalesii Rose | Oxalis lasiandra Zucc. |
| Ionoxalis grahamiana (Benth.) Small | Oxalis jacquiniana Kunth |
| Ionoxalis grayi Rose | Oxalis decaphylla Kunth |
| Ionoxalis hernandezii (Moc. & SessĂ© ex DC.) Rose | Oxalis hernandezii Moc. & Sessé ex DC. |
| Ionoxalis immaculata Small | Oxalis alpina (Rose) Rose ex R.Knuth |
| Ionoxalis jacquiniana (Kunth) Rose | Oxalis jacquiniana Kunth |
| Ionoxalis jaliscana Rose | Oxalis decaphylla Kunth |
| Ionoxalis lanceolata Small | Oxalis hernandezii Moc. & Sessé ex DC. |
| Ionoxalis lasiandra (Zucc.) Rose | Oxalis lasiandra Zucc. |
| Ionoxalis lunulata (Zucc.) Rose | Oxalis lunulata Zucc. |
| Ionoxalis macilenta Small | Oxalis hernandezii Moc. & Sessé ex DC. |
| Ionoxalis macrocarpa Small | Oxalis macrocarpa (Small) R.Knuth |
| Ionoxalis magnifica Rose ex Small | Oxalis magnifica (Rose ex Small) R.Knuth |
| Ionoxalis metcalfei Small | Oxalis metcalfei (Small) R.Knuth |
| Ionoxalis monticola Small | Oxalis metcalfei (Small) R.Knuth |
| Ionoxalis mucronata Rose ex Small | Oxalis tetraphylla Cav. |
| Ionoxalis oaxacana Rose ex Small | Oxalis magnifica (Rose ex Small) R.Knuth |
| Ionoxalis obliqua Rose ex Small | Oxalis jacquiniana Kunth |
| Ionoxalis occidentalis Rose | Oxalis decaphylla Kunth |
| Ionoxalis pazensis Rusby | Oxalis pinguiculacea R.Knuth |
| Ionoxalis pes-caprae (L.) Small | Oxalis pes-caprae L. |
| Ionoxalis primavera Rose | Oxalis primavera (Rose) R.Knuth |
| Ionoxalis pringlei Rose | Oxalis alpina (Rose) Rose ex R.Knuth |
| Ionoxalis quadriglandula Rose ex Small | Oxalis jacquiniana Kunth |
| Ionoxalis rupestris Small | Oxalis alpina (Rose) Rose ex R.Knuth |
| Ionoxalis schiedeana (Zucc.) Rose | Oxalis discolor Klotzsch |
| Ionoxalis scopulorum Rose | Oxalis tetraphylla Cav. |
| Ionoxalis tenuissima Rose ex Small | Oxalis hernandezii Moc. & Sessé ex DC. |
| Ionoxalis tetraphylla (Cav.) Rose | Oxalis tetraphylla Cav. |
| Ionoxalis trientalis Small | Oxalis hernandezii Moc. & Sessé ex DC. |
| Ionoxalis trinervia Rose ex Small | Oxalis jacquiniana Kunth |
| Ionoxalis vespertilionis Small | Oxalis drummondii A.Gray |
| Ionoxalis violacea (L.) Small | Oxalis violacea L. |