| Fabaceae | |
Acacia penninervis var. angustata
| F.M. Bailey | Syn. Queensl. Fl. 136 | 1883 |
| Fabaceae | |
Acacia penninervis var. angustifolia
| Maiden | Wattles Wattle-Barks ed. 3: 51 | 1906 |
| Fabaceae | |
Acacia penninervis var. falciformis
| (DC.) Benth. | Fl. Austral. 2: 362 | 1864 |
| Fabaceae | |
Acacia penninervis var. glauca
| R.T. Baker | Proc. Linn. Soc. New South Wales 21(3): 441 | 1896 |
| Fabaceae | |
Acacia penninervis var. impressa
| Domin | Biblioth. Bot. 89: 254 | 1926 |
| Fabaceae | |
Acacia penninervis var. lanceolata
| R.T. Baker | Proc. Linn. Soc. New South Wales 21: 441 | 1896 |
| Fabaceae | |
Acacia penninervis var. longiracemosa
| Domin | Biblioth. Bot. 89: 254 | 1926 |
| Fabaceae | ** |
Acacia penninervis var. normalis
| R.T. Baker | Proc. Linn. Soc. New South Wales 21: 440 | 1896 |
| Fabaceae | |
Acacia penninervis var. penninervis
| | | |
| Fabaceae | |
Acacia penninervis var. stenophylla
| Domin | Biblioth. Bot. 89: 254 | 1926 |
| Fabaceae | ** |
Acacia penninervis var. typica
| (Sieber ex DC.) Domin | Biblioth. Bot. 89: 254 | 1926 |