Rhododendron sinofalconeri
Common name: 
Sinofalconer Rhododendron
ro-do-DEN-dron si-no-fawl-KON-a-ri, or -ree
Native to (or naturalized in) Oregon: 
  • Broadleaf evergreen shrub or small tree, ~10-30 ft (3-–10 m) tall, stout branchlets, grayish pubescence when young, bark smooth, brown flaking.  Leaves simple, alternate, thick and leathery, large, 17-–32 cm long and 11-–16 cm wide, oblong-elliptic, broadest above middle of blade, base wide, wedge-shaped (cuneate) or rounded, apex obtuse, upper surface green, slightly rugulose (wrinkled), glabrous, mid-rib grooved, lateral veins 16-–19-paired, deeply impressed, lower surface with soft and spongy, covered with a 2-layered pubescence (pale cinnamon).  Flowers pale yellow, bell-shaped, 3.5– cm. long, with 8 lobes, 16 stamens, unequal length, filaments pubescent at base, 15-–20 flowers per cluster.
  • This species is similar to R. falconeri, a few differences are [see Davidian, ( Vol. II, Pt. 1,1989), for others]:
    • The lower leaf surface of R. sinofalconeri is without shallow pits formed by primary veins and veinlets.  R. falconeri has these pits.
    • They have different geographical distribution.  R. sinofalconeri is native to the Yunnan area of China, whereas R. falconeri has a much wider distribution, it is found in Nepal, Sikkim, Bhutan, and India (Arunachal Pradesh and Assam).
  • sinofalconeri: presumably meaning "the falconeri of China"; (China, sino-).
  • Federal Way, Washington: Rhododendron Species and Botanical Garden.
Click image to enlarge
  • plant habit, flowering

    plant habit, flowering

  • flower clusters and leaves

    flower clusters and leaves

  • flower cluster

    flower cluster