''Rhododendron kiusianum'', the Kyushu azalea, is a species of flowering plant in the family

Ericaceae The Ericaceae () are a Family (biology), family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with about 4,250 known species spread acros ...

, native to

Kyushu is the third-largest island of Japan's Japanese archipelago, four main islands and the most southerly of the four largest islands (i.e. excluding Okinawa Island, Okinawa and the other Ryukyu Islands, Ryukyu (''Nansei'') Ryukyu Islands, Islands ...

, Japan. It is a parent of a large number of hybrid dwarf azaleas, drawn from the naturally-occurring Kurume azaleas used in bonsai. It is the official flower of Unzen, Nagasaki, and of

Kagoshima Prefecture is a Prefectures of Japan, prefecture of Japan located on the island of Kyushu and the Ryukyu Islands. Kagoshima Prefecture has a population of 1,527,019 (1 February 2025) and has a geographic area of 9,187 Square kilometre, km2 (3,547 Square m ...

References

kiusianum Endemic flora of Japan Plants described in 1914 {{Ericaceae-stub