| Family | Ericaceae |
| Scientific name | Rhododendron dilatatum Miquel var. satsumense Yamazaki |
| Synonyms | none |
| Common name | (Japanese common name) hayato mitsuba tutuji [Hayato three leaves tutuji (Hayato = an old name of Kagoshima Prefecture, tutuji = Rhododendron plants)] |
| (English common name) none | |
| Distribution | (Japan) Kyushu (Kagoshima Prefecture) |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants 3-5m. Leaves 5cm length. Flowers purple, flowering in March to May. Deciduous. Shrub. |
| Note | Rare species. |
| Herbert A. Spady described that Rhododendron dilatatum var. satsumense is a synonym of Rhododendron decandrum (Makino) Makino (syn. Rhododendron inobeanum Honda). See Rhododendron Species Dictionary. |
| February 2007 at Koishikawa Botanical Garden |
February 2007 at Koishikawa Botanical Garden |
| March 2007 at Koishikawa Botanical Garden |
March 2007 at Koishikawa Botanical Garden |
March 2007 at Koishikawa Botanical Garden |