| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Rhododendron semibarbatum Maxim. | S. Tschonoski s.n. 1864-1866 | Japan. Prov. Senano et Nambu. In alpibus altis. | possible type | 10348 |  |
| Rhododendron semibarbatum Maxim. | B. F. Palser s.n. 30 Oct 1981 | United States of America. Massachusetts. Arnold Arboretum, Jamaica Plain. | |||
| Rhododendron semibarbatum Maxim. | 4393964 |  | |||
| Rhododendron semibarbatum Maxim. | 4393966 |  | |||
| Rhododendron semibarbatum Maxim. | 04393963 |  | |||
| Rhododendron semibarbatum Maxim. | 4393965 |  |
