Native to (or naturalized in) Oregon:
- Broadleaf deciduous shrub, bushy, to 8 ft (2.5 m) tall. Leaves alternate, simple, about 2 cm long and 1 cm wide, broadly obovate, oval or elliptic, apex obtuse with a few teeth or entire, base wedge- shaped, upper surface glabrous, dark green, blue-green below; petioles to 3 mm. Blooms in spring. Flowers white, about 8 mm wide, crowded at the terminal, petals longer than stamens, clusters to 4 cm wide.
- Hardy to USDA Zone 4 Native to Japan.
- Popular selection: 'Snowmound' - upright, rigid form, 3-5 ft (0.9-1.5 m) tall, leaves bluish green, abundant white flowers