| Oxalidaceae | |
Xanthoxalis acuminata
| (Schltdl. & Cham.) Small | N. Amer. Fl. 25(1): 56 | 1907 |
| Oxalidaceae | |
Xanthoxalis albicans
| (Kunth) Small | N. Amer. Fl. 25(1): 54 | 1907 |
| Oxalidaceae | |
Xanthoxalis amara
| (A. St.-Hil.) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis aureoflava
| (Steud.) Holub | Folia Geobot. Phytotax. 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis biflexa
| Rusby | Descr. S. Amer. Pl. 31–32 | 1920 |
| Oxalidaceae | |
Xanthoxalis breviramulosa
| (Rusby) Holub | Folia Geobot. Phytotax. 8(2): 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis brittoniae
| (Small) Small | Fl. S.E. U.S. 668 | 1903 |
| Oxalidaceae | |
Xanthoxalis bushii
| (Small) Small | Fl. S.E. U.S. 667–668 | 1903 |
| Oxalidaceae | |
Xanthoxalis californica
| Abrams | Bull. Torrey Bot. Club 34(5): 264 | 1907 |
| Oxalidaceae | |
Xanthoxalis chrysantha
| (Progel) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis clematodes
| (Donn. Sm.) Small | N. Amer. Fl. 25(1): 56 | 1907 |
| Oxalidaceae | |
Xanthoxalis coloradensis
| (Rydb.) Rydb. | Fl. Colorado 220 | 1906 |
| Oxalidaceae | |
Xanthoxalis colorea
| Small | Fl. S.E. U.S. 668, 1333 | 1903 |
| Oxalidaceae | |
Xanthoxalis commersonii
| (Pers.) Holub | | ** |
| Oxalidaceae | |
Xanthoxalis cordobensis
| (R. Knuth) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis corniculata
| (L.) Small | Fl. S.E. U.S. 667 | 1903 |
| Oxalidaceae | |
Xanthoxalis crassicaulis
| (Zucc.) Small | N. Amer. Fl. 25: 56 | 1907 |
| Oxalidaceae | |
Xanthoxalis cymosa
| (Small) Small | Fl. S.E. U.S. 668 | 1903 |
| Oxalidaceae | |
Xanthoxalis dillenii
| (Jacq.) Holub | Bot. Közlem. 59(1): 38 | 1972 |
| Oxalidaceae | |
Xanthoxalis dumetorum
| (Barnéoud) Holub | Folia Geobot. Phytotax. 8: 175 | 1873 |
| Oxalidaceae | |
Xanthoxalis europaea
| (Jord.) Moldenke | Boissiera 7: 5 | 1943 |
| Oxalidaceae | |
Xanthoxalis filiformis
| (Kunth) Holub | Folia Geobot. Phytotax. 8(2): 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis filipes
| (Small) Small | Fl. S.E. U.S. 667 | 1903 |
| Oxalidaceae | |
Xanthoxalis flagellata
| Rusby | Descr. S. Amer. Pl. 31 | 1920 |
| Oxalidaceae | |
Xanthoxalis florida
| (Salisb.) Moldenke | Boissiera 7: 5 | 1943 |
| Oxalidaceae | |
Xanthoxalis fontana
| Holub | | |
| Oxalidaceae | |
Xanthoxalis grandis
| (Small) Small | Fl. S.E. U.S. 668 | 1903 |
| Oxalidaceae | |
Xanthoxalis grenadensis
| Tzvelev | | |
| Oxalidaceae | |
Xanthoxalis hirsuticaulis
| (Small) Small | Fl. S.E. U.S. 669 | 1903 |
| Oxalidaceae | |
Xanthoxalis interior
| Small | Fl. S.E. U.S. 668, 1333 | 1903 |
| Oxalidaceae | |
Xanthoxalis langloisii
| Small | Fl. S.E. U.S. 667, 1332 | 1903 |
| Oxalidaceae | |
Xanthoxalis laxa
| (Hook. & Arn.) Holub | Folia Geobot. Phytotax. 8(2): 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis lineata
| (Gillies ex Hook. & Arn.) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis lotoides
| (Kunth) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis lyonii
| (Pursh) Holub | Folia Geobot. Phytotax. 8(2): 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis macrantha
| (Trel.) Small | Fl. S.E. U.S. 667 | 1903 |
| Oxalidaceae | |
Xanthoxalis madrensis
| (S. Watson) Small | N. Amer. Fl. 25: 55 | 1907 |
| Oxalidaceae | |
Xanthoxalis medicaginea
| (Kunth) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis micrantha
| (Bertero) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis mollissima
| Rusby | Descr. S. Amer. Pl. 31 | 1920 |
| Oxalidaceae | |
Xanthoxalis ortgiesii
| (Regel) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis parvifolia
| (DC.) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis phaeotricha
| (Diels) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis pilosa
| (Nutt.) Small | N. Amer. Fl. 25(1): 54 | 1907 |
| Oxalidaceae | |
Xanthoxalis polyantha
| (Walp.) Holub | Folia Geobot. Phytotax. 8: 175 | 1973 |
| Oxalidaceae | |
Xanthoxalis priceae
| (Small) Small | Fl. S.E. U.S. 669 | 1903 |
| Oxalidaceae | |
Xanthoxalis pygmaea
| Small | N. Amer. Fl. 25(1): 55 | 1907 |
| Oxalidaceae | |
Xanthoxalis recurva
| (Elliott) Small | Fl. S.E. U.S. 668 | 1903 |
| Oxalidaceae | |
Xanthoxalis refracta
| (A. St.-Hil.) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis repens
| (Thunb.) Moldenke | Castanea 9(1–3): 42 | 1944 |
| Oxalidaceae | |
Xanthoxalis rosea
| (Feuillée ex Jacq.) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis rufa
| (Small) Small | Fl. S.E. U.S. 668 | 1903 |
| Oxalidaceae | |
Xanthoxalis siliquosa
| P.F. Hunt | J. Roy. Hort. Soc. 85: 371 | 1960 |
| Oxalidaceae | |
Xanthoxalis spiralis
| (Ruiz & Pav. ex G. Don) Holub | Folia Geobot. Phytotax. 8(2): 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis sternbergii
| (Zucc.) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis stricta
| (L.) Small | Fl. S.E. U.S. 667 | 1903 |
| Oxalidaceae | |
Xanthoxalis suksdorfii
| (Trel.) Small | N. Amer. Fl. 25(1): 53 | 1907 |
| Oxalidaceae | |
Xanthoxalis texana
| Small | Fl. S.E. U.S. 667, 1332 | 1903 |
| Oxalidaceae | |
Xanthoxalis thelyoxys
| (Focke) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis trinidadensis
| (R. Knuth) Holub | Folia Geobot. Phytotax. 8: 176 | 1985 |
| Oxalidaceae | |
Xanthoxalis tuberosa
| (Molina) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis unduavensis
| Rusby | Descr. S. Amer. Pl. 30 | 1920 |
| Oxalidaceae | |
Xanthoxalis valdiviensis
| (Barnéoud) Holub | Folia Geobot. Phytotax. 8: 176 | 1973 |
| Oxalidaceae | |
Xanthoxalis vulcanicola
| (Donn. Sm.) Small | N. Amer. Fl. 25(1): 55 | 1907 |
| Oxalidaceae | |
Xanthoxalis wrightii
| (A. Gray) Abrams | Bull. Torrey Bot. Club 34(5): 264 | 1907 |