| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Rhododendron quadrasianum S.Vidal | |||||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | |||||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | |||||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | B. F. Palser 6902 22 May 1969 | Philippines. Luzon. On slope above road below summit of Mt. Santo Thomas Near Baguio. |  | ||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | B. F. Palser 6923 23 May 1969 | Philippines. Luzon. Along road between Baguio and Bontoc, near 20 km from Baguio. |  | ||
| Rhododendron quadrasianum S.Vidal | 4395088 |  | |||
| Rhododendron quadrasianum S.Vidal | 4395091 |  | |||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | J. L. Rouse s.n. 30 Sep 1982 | Australia. Victoria. Melbourne City. | |||
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | A. D. E. Elmer 14285 | Philippines. Benguet. Baguio. | 4395085 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | W. Klemme 872 | Philippines. Mt. Banahao, Prov. of Tayabas, Luzon. | 4395083 |  | |
| Rhododendron quadrasianum S.Vidal | R. S. Williams 2543 | Philippines. Mt. Apo, S. E. Mindanao. | 4395093 |  | |
| Rhododendron quadrasianum S.Vidal | A. D. E. Elmer 11656 | Philippines. Todaya (Mt. Apo). District of Davao, Island of Mindanao, forest basin of Apo, near Baclayan the camping place. | 4395094 |  | |
| Rhododendron quadrasianum S.Vidal | A. D. E. Elmer 13695 | Philippines. Cabadbaran (Mt. Urbaneta), Province of Agusan Island of Mindanao. | 4395069 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | F. W. Darling 14453 | Philippines. Bontoc, Luzon. | 4395077 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | R. S. Williams 1335 | Philippines. La Union. Mount Santo Tomas, Northern Luzon. | 4395078 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | R. S. Williams 1335 | Philippines. La Union. Mount Santo Tomas, Northern Luzon. | 4395082 |  | |
| Rhododendron quadrasianum S.Vidal | A. D. E. Elmer 9738 | Philippines. Negros Oriental. Dumaguete (Cuernos Mts.) Island of Negros, about region of the crater. | 04395087 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | M. Ramos 19588 | Philippines. Laguna. Mt. Banajao, Luzon. | 4395086 |  | |
| Rhododendron quadrasianum S.Vidal | A. D. E. Elmer 17488 | Philippines. Laguna. Los Baños (Mt. Maquiling), Island of Luzon. | 4395089 |  | |
| Rhododendron quadrasianum var. rosmarinifolium (S.Vidal) H.F.Copel. | A. D. E. Elmer 8588 | Philippines. Benguet. Baguio, Luzon, Near summit of Santo Thomas. | 4395080 |  |
