| Family | Ericaceae |
| Scientific name | Rhododendron wadanum Makino |
| Synonyms | Rhododendron wadanum Makino forma leucanthum (Makino) H. Hara |
| Common name | (Japanese common name) tougoku-mitsuba-tutuji [Eastern triple leaves tutuji (tutuji = Rhododendron plants)] |
| (English common name) none | |
| Distribution | (Japan) Honshu (south of Miyagi Prefecture, east of Kinki region, mainly Pacific Ocean side) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants 2-3m tall. Leaves 3-6cm long. Flowers purple or white (forma leucanthum) 3-4cm, flowering in April to May. Deciduous. Shrub. |
| Reference | Distribution of Rhododendron wadanum (Ericaceae) in Central Japan Contribution from the KLIPS Mapping System 3 |
| Note | Endemic to Japan. |
| April 2007 at Tsukuba Botanical Garden |
April 2007 at Tsukuba Botanical Garden |
April 2007 at Tsukuba Botanical Garden |
| May 2008 at Mt. Tsukuba |
May 2008 at Mt. Tsukuba |
May 2008 at Mt. Tsukuba |
| January 2008 at Tsukuba Botanical Garden |
January 2008 at Tsukuba Botanical Garden |