Rhododendron kiusianum

{{Short description|Species of plant in the genus Rhododendron}}

{{Speciesbox

|image=Kuju mountains (5831790846) (3).jpg

|image_caption=In bloom on the slopes of Mount Taisen, a volcano in Aso Kujū National Park

|image2=Rhododendron kiusianum in Ebino.jpg

|image2_caption=Close up of flowers on the Ebino Plateau

|genus=Rhododendron

|species=kiusianum

|authority=Makino

|synonyms_ref=

|synonyms=

• Rhododendron obtusum var. japonicum (Maxim.) Kitam.

}}

Rhododendron kiusianum, the Kyushu azalea, is a species of flowering plant in the family Ericaceae, native to Kyushu, Japan.{{cite web |url=http://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:332683-1 |title=Rhododendron kiusianum Makino |author= |website=Plants of the World Online |publisher=Board of Trustees of the Royal Botanic Gardens, Kew |access-date=7 September 2021 }} It is a parent of a large number of hybrid dwarf azaleas, drawn from the naturally-occurring Kurume azaleas used in bonsai.{{cite web |title=Rhododendron kiusianum (EA) Kyushu azalea |url=https://www.rhs.org.uk/Plants/15321/i-Rhododendron-kiusianum-i-(EA)/Details |date=2021 |publisher=The Royal Horticultural Society |access-date=8 September 2021 |quote=Synonyms; ... Azalea kiusiana }}{{cite web |url=http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=253551 |title=Rhododendron 'Sherwoodii' |author= |date= |website=Plant Finder |publisher=Missouri Botanical Garden |access-date=8 September 2021 }} It is the official flower of Unzen, Nagasaki, and of Kagoshima Prefecture.