Native to (or naturalized in) Oregon:
- Broadleaf evergreen shrub, 4 ft (1.2 m). Distinctive dark green convex leaves (unlike any other rhododendron), to 7.5 x 2.5 cm, tightly spaced on stem, rosette form. Flowers deep purple, medium sized, indistinct yellow blotch, small pompom clusters.
- -15°F, mid-late, quality rating 2-3/4/4 [flower / plant & foliage / performance; scale 1 (poor) - 5 (best)]. Sun to part shade. Introduced in 1868.
- Oregon State Univ. campus: south side of Cordley Hall.