Native to (or naturalized in) Oregon:
- Deciduous shrub, 6-8(20) ft [1.8-2.4(6) m], upright, narrow, layered branch habit. Leaves alternate, simple, mostly crowded at end of branches, 2.5-7.5 x 1.5-4.0 cm, elliptic, dull dark green, turn shades of yellow, orange, and bright scarlet (in sun) in fall. Large terminal flower buds, small bell-shaped (campanulatus: bell-shaped) flowers in May, 8-12 mm long, subtle creamy, yellow, or light orange with red veins. Fruit egg-shaped dehiscent capsule, 5 valved.
- Sun to part shade, requirements similar to rhododendrons, definitely acid soil. Several cultivars.
- Hardy to USDA Zone 4 Japan
- Enkianthus: from the Greek enkyos, swollen or pregnant, and anthos, flower, referring to E. quinqueflorus in which each flower appears to bear another inside it. campanulatus: bell-shaped (the flower).
- Oregon State Univ. campus: east side of Ocean Administration. Building (26th Street and Monroe).