| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Rhododendron wadanum Makino | B. F. Palser s.n. 19 May 1969 | Japan. Tochigi. Nikko-shi. Nikko Botanical Garden,. | |||
| Rhododendron wadanum Makino | 04394561 |  | |||
| Rhododendron wadanum Makino | 4394565 |  | |||
| Rhododendron wadanum Makino | T. M. Koyama 9393 | Japan. Prov. Shimotsuke: Nikko, northern coast of Chuzenji Lake, nr. Shobu-gahama. | 4394566 |  | |
| Rhododendron wadanum Makino | J. Ohwi 442 | Japan. Hondo: Takatoku in Shimotsuke. | 4394567 |  | |
| Rhododendron wadanum Makino | 4394564 |  | |||
| Rhododendron wadanum Makino | 4394562 |  | |||
| Rhododendron wadanum Makino | 4394563 |  |
