| Onagraceae | |
Epilobium billardierianum subsp. billardierianum
| | | |
| Onagraceae | |
Epilobium billardierianum subsp. cinereum
| (A. Rich.) P.H. Raven & Engelhorn | New Zealand J. Bot. 9: 349 | 1971 |
| Onagraceae | |
Epilobium billardierianum subsp. hydrophilum
| P.H. Raven & Engelhorn | New Zealand Dept. Sci. & Industr. Res. Bull. 216: 115 | 1976 |
| Onagraceae | |
Epilobium billardierianum subsp. intermedium
| P.H. Raven & Engelhorn | New Zealand J. Bot. 9: 348 | 1971 |
| Onagraceae | |
Epilobium billardierianum fo. major
| Hausskn. | Monogr. Epilobium 293 | 1884 |
| Onagraceae | |
Epilobium billardierianum fo. simplex
| Hausskn. | Monogr. Epilobium 293 | 1884 |
| Onagraceae | |
Epilobium billardierianum var. simplex
| Kirk | Stud. Fl. New Zealand 170 | 1899 |