Rhododendron viscosum

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Rhododendron viscosum
Swamp Azalea Blooming.jpg
R. viscosum in bloom
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Ericales
Family: Ericaceae
Genus: Rhododendron
Species: R. viscosum
Binomial name
Rhododendron viscosum
(L.) Torr.
  • Azalea nitida Pursh
  • Azalea oblongifolia Small
  • Azalea viscosa L.
  • Rhododendron oblongifolium (Small) Millais
  • Rhododendron viscosum var. glaucum Torr.
  • Rhododendron viscosum var. nitidum (Pursh) A. Gray
  • Rhododendron viscosum f. rhodanthum Rehder

Rhododendron viscosum, commonly known as swamp azalea[1] or clammy azalea, is a deciduous shrub which is endemic to the United States.

R. viscosum fall foliage at the High Line


  1. ^ "Rhododendron viscosum". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 21 October 2015.