| Family | Ericaceae |
| Scientific name | Rhododendron degronianum Carrière subsp. heptamerum (Maximovicz) H. Hara var. heptamerum (Maximovicz) Sealy ex Davidian |
| Synonyms | Hymenanthes japonica Blume; Rhododendron degronianum Carrière subsp. heptamerum (Maximovicz) H. Hara; Rhododendron degronianum Carrière var. heptamerum (Maximovicz) H. Hara; Rhododendron hymenanthes Makino; Rhododendron japonicum (Blume) C. K. Schneider; Rhododendron japonoheptamerum Kitamura; Rhododendron metternichii Siebold & Zuccarini; Rhododendron metternichii Siebold & Zuccarini forma typicum Makino |
| Common name | (Japanese common name) tsukushi shakunage [Tsukushi azalea (Tsukushi = an old name of Fukuoka Prefecture)] |
| (English common name) none | |
| Distribution | (Japan) Honshu (Kii Peninsular), Shikoku, Kyushu |
| (Other nations) none | |
| Chromosomal number | unknown |
| Description | Plants 3-4m. Leaves 8-20cm long. Flowers pink corollas 4-5cm, flowering in May to June. Evergreen. Shrub. |
| Reference | Rhododendron degronianum Carrière subsp. heptamerum (Maxim.) H. Hara var. heptamerum (Maxim.) Sealy ex Davidian |
| Rhododendron degronianum | |
| Note | Endemic to Japan. |
| April 2008 at Kochi Prefecture Makino Botanical Garden |
April 2008 at Kochi Prefecture Makino Botanical Garden |
April 2008 at Kochi Prefecture Makino Botanical Garden |