| Family | Ericaceae |
| Scientific name | Rhododendron mucronatum (Blume) G. Don var. ripense (Makino) E. H. Wilson |
| Synonyms | Rhododendron ripense Makino |
| Common name | (Japanese common name) kishi tutuji [riverside tutuji (tutuji = Rhododendron plants)] |
| (English common name) none | |
| Distribution | (Japan) Honshu (west of Hyogo Prefecture), Shikoku, Kyushu |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants 1.5m. Leaves 2-6cm length. Flowers pale purple corollas 4-5cm, flowering in April to May. Evergreen. Shrub. |
| Reference | Rhododendron mucronatum (Blume) G. Don var. ripense (Makino) E. H. Wilson |
| Note | Rare species. |
| April 2007 at Tsukuba Botanical Garden |
April 2007 at Tsukuba Botanical Garden |
April 2007 at Tsukuba Botanical Garden |