Rhododendron yedoense

Rhododendron yedoense (syn. Rhododendron poukhanense), the Korean azalea, is a species of flowering plant in the family Ericaceae, with a disjunct distribution in northern Myanmar, Yunnan province in China, South Korea, and northern Kyushu island of Japan.[1] Hardy in USDA zones 4 through 9, it is recommended as a hedge, and has above average resistance to the root rot that often afflicts azaleas.[2] Rhododendron yedoense f. poukhanense is a major parental contributor to many modern hybrid azaleas.[2]

Rhododendron yedoense
Rhododendron yedoense f. poukhanense at the University of California Botanical Garden
Close-up of flower
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Genus: Rhododendron
Species:
R. yedoense
Binomial name
Rhododendron yedoense
Synonyms[1]
  • Azalea poukhanensis (H.Lév.) Olmsted, Coville & H.P.Kelsey
  • Rhododendron coreanum Rehder
  • Rhododendron hallaisanense H.Lév.
  • Rhododendron poukhanense H.Lév.
  • Rhododendron yedoense var. hallaisanense (H.Lév.) T.Yamaz.

Subtaxa

The following forms are accepted:[1]

  • Rhododendron yedoense f. poukhanense (H.Lév.) Sugim. ex T.Yamaz. – South Korea, northern Kyushu
  • Rhododendron yedoense f. yedoense – northern Myanmar, Yunnan

References
  1. "Rhododendron yedoense Maxim. ex Regel". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 10 June 2022.
  2. "Rhododendron yedoense var. poukhanense". Plant Finder. Missouri Botanical Garden. Retrieved 10 June 2022.


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