Rhododendron campylocarpum subsp. coloxanthum
ro-do-DEN-dron kam-pi-lo-KAR-pum ka-loks-ANTH-um
Native to (or naturalized in) Oregon:
- Broadleaf evergreen shrub, 3 ft (0.9 m) high in 10 years. Leaves simple, alternate, about 4-10 cm long, about half as wide, mostly elliptic or oblong-elliptic, apex rounded or obtuse, base truncate or slightly cordate, upper surface dark glossy green, lower surface paler and glaucous green or whitish; petiole to 2.5 cm long. Flowers sulfur or pale yellow, campanulate, 5-lobed, 6-8 cm across, 3-10 in open clusters.
- 0°F, early-mid, quality rating 3-4/4/3 [flower / plant & foliage / performance; scale 1 (poor) - 5 (best)]. Native to the Himalaya; northeast Burma, China; southeast Tibet, and western Yunnan.
- campylocarpum: from kampe (Gr.) something bent, and carpum, fruit; hence with a curved fruit. This was seen by J. D. Hooker, the discoverer of R. campylocarpum in 1848, but often it is straight.
- coloxanthum: a beautiful yellow.
- Federal Way, Washington: Rhododendron Species Botanical Garden.