Rhododendron auriculatum
Common name: 
No common name (R. auriculatum)
rho-do-DEN-dron ow-rik-ew-LAH-tum
Native to (or naturalized in) Oregon: 
  • Broadleaf evergreen shrub or tree, 6-30 ft (~2-10 m) tall,   Leaves oblong to oblong lanceolate, up to 30 cm long and 3-12 cm wide, apex broadly obtuse or rounded, base rounded or auriculate (auricle - an ear-like appendage), upper surface dull dark green, vein deeply impressed, underside pale green, hairy and glandular with isolated, long, thread-like white or brownish hairs.  Flowers funnel-shaped to 10 cm long, white to occasionally rosy pink, greenish blotch at the base of tube, fragrant, 14- or 16 unequal stamen, calyx 5-6 lobed; 7-15 flowers in loose clusters.
  • 0°F, very late (even into August), 4/4/4.  [flower / plant & foliage / performance; scale 1 (poor) - 5 (best)]    Native to China, eastern Sichuan, western Hubei, eastern Guizhou.   Discovered by Augustine Henry in 1885 in western Hubei province and described 4 years later.
  • auriculatum: eared, a reference to the ear-like basal lobes of the leaf blade.
  • Federway, Washington: Rhododendron Species Botanical Garden
Click image to enlarge
  • plant habit, flowering, July

    plant habit, flowering, July

  • flower clusters and leaves

    flower clusters and leaves

  • flower cluster

    flower cluster

  • flower


  • leaf


  • leaf base

    leaf base