| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Rhododendron macgregoriae F.Muell. | C. E. Carr 14208 | Papua New Guinea. Central. Boridi. | 4395015 |  | |
| Rhododendron macgregoriae F.Muell. | B. F. Palser 84-26 23 Aug 1984 | Papua New Guinea. Western Highlands. At Kiuk along road from Mt. Hagen toward Wabag. |  | ||
| Rhododendron macgregoriae F.Muell. | 04395010 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395014 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395016 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395017 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395020 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395012 |  | |||
| Rhododendron macgregoriae F.Muell. | 4395011 |  | |||
| Rhododendron macgregoriae F.Muell. | L. J. Brass 32044 | Papua New Guinea. Eastern Highlands. Arau. | 4395021 |  | |
| Rhododendron macgregoriae F.Muell. | W. N. Takeuchi 11073 | Papua New Guinea. Madang. Bismarck Range, ridge overlooking Camp 4. | 4395013 |  | |
| Rhododendron macgregoriae F.Muell. | J. L. Rouse s.n. 11 Sep 1982 | Australia. Victoria. Melbourne City. JLR garden. | |||
| Rhododendron macgregoriae F.Muell. | J. L. Rouse s.n. 30 Sep 1982 | Australia. Victoria. Melbourne City. JLR garden. | |||
| Rhododendron macgregoriae F.Muell. | J. L. Rouse s.n. 30 Sep 1982 | Australia. Victoria. Melbourne City. JLR garden. | |||
| Rhododendron macgregoriae F.Muell. | C. E. Carr 15005 | Papua New Guinea. Muatate/Lala divide. | 4395018 |  | |
| Rhododendron macgregoriae F.Muell. | H. Matsuo 93 | Papua New Guinea. Edge of Nothofagus forest in south side of the top of the south summit of Mt. Kaindi, about 6km W from Wau town. | 4395019 |  |
