| Rutaceae | |
Ptelea trifoliata subsp. angustifolia
| (Benth.) V.L. Bailey | Brittonia 14(1): 15 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. angustifolia
| (Benth.) M.E. Jones | Proc. Calif. Acad. Sci., ser. 2, 5(18): 629 | 1895 |
| Rutaceae | |
Ptelea trifoliata var. baldwinii
| (Torr. & A. Gray) D.B. Ward | Novon 11(3): 363 | 2001 |
| Rutaceae | |
Ptelea trifoliata subsp. coahuilensis
| (Greene) V.L. Bailey | Brittonia 14(1): 28 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. coahuilensis
| (Greene) V.L. Bailey | Brittonia 14(1): 28 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. cognata
| (Greene) V.L. Bailey | Brittonia 14: 18 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. confinis
| (Greene) V.L. Bailey | Brittonia 14(1): 27 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. deamiana
| Nieuwl. | Amer. Midl. Naturalist 2(8): 179–180 | 1912 |
| Rutaceae | |
Ptelea trifoliata var. lutescens
| (Greene) V.L. Bailey | Brittonia 14(1): 25 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. mollis
| Torr. & A. Gray | Fl. N. Amer. 1(4): 680 | 1840 |
| Rutaceae | |
Ptelea trifoliata subsp. pallida
| (Greene) V.L. Bailey | Brittonia 14(1): 23 | 1962 |
| Rutaceae | |
Ptelea trifoliata var. persicifolia
| (Greene) V.L. Bailey | Brittonia 14(1): 19 | 1962 |
| Rutaceae | |
Ptelea trifoliata subsp. polyadenia
| (Greene) V.L. Bailey | Brittonia 14(1): 20 | 1962 |
| Rutaceae | |
Ptelea trifoliata fo. pubescens
| (Pursh) Fernald | Rhodora 38(450): 233 | 1936 |
| Rutaceae | |
Ptelea trifoliata var. pubescens
| Pursh | Fl. Amer. Sept. 1: 107 | 1814 [1813] |
| Rutaceae | |
Ptelea trifoliata var. pumila
| (Greene) V.L. Bailey | Brittonia 14(1): 29 | 1962 |
| Rutaceae | |
Ptelea trifoliata fo. trifoliata
| | | |
| Rutaceae | |
Ptelea trifoliata subsp. trifoliata
| | | |
| Rutaceae | |
Ptelea trifoliata var. trifoliata
| | | |