| Key to the genera previously included within Baeckea L. sens. lat. in eastern Australia, New Caledonia and Malesia (Bean, Austrobaileya 4 , 1997) |
| 1. | Ovary and fruit 3-locular | 2 |
| Ovary and fruit 2-locular | Baeckea |
| 2. | Anthers versatile, dehiscing by long parallel slits | 3 |
| Anthers adnate, dehiscing by pores or short divergent slits | Babingtonia |
| 3. | Ovules and seeds D-shaped, angular | Baeckea |
| Ovules and seed reniform, not angular | 4 |
| 4. | Some stamens opposite centre of petals | Euryomyrtus Schauer |
| No stamens opposite centre of petals | 5 |
| 5. | Ovules 2 per loculus, stamens 5-8 | Ochrosperma Trudgen |
| Ovules 8-13 per loculus, stamens 14-18 | Triplarina Raf. |