Rhododendron quinquefolium
Common name: 
Quinquefolium Azalea
rho-do-DEN-dron kwing-kwee-FO-lee-um
Native to (or naturalized in) Oregon: 
  • Broadleaf deciduous shrub, an azalea, bushy habit, to 2.5 ft (~0.8 m) in 10 years, but it may be a small tree in the wild, branches erect.  Leaves in whorls of 5 (occasionally a few more) at the ends of shoots, obovate to somewhat diamond-shaped, apex rounded, abrupt tip, to about 4-5 cm long and 2.5 cm wide, pale green, often with a purplish-red margin.  Flowers white with green spots, solitary, or in 2s or 3s, produced with young leaves from the terminal bud, funnel-shaped, about 4 cm across, 10 stamens.
  • -5°F, early middle; quality rating: 3/5/2-3 [flower / plant & foliage / performance; scale 1 (poor) - 5 (best)].
  • Native to Japan.
  • quinquefolium: leaves in fives.
  • Rhododendron Species Foundation and Botanical Garden, Federal Way, Washington.
Click image to enlarge
  • plant habit, flowering

    plant habit, flowering

  • flowers


  • expanding leaves and flowers

    expanding leaves and flowers