– Columbian mock orange, Lewis' mock orange, Piper's mock orange, Zeller's mock orange
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to Montana.
Habitat: Various habitats, dry to moist, sea level to 7000 feet (on the east slopes of the Cascades).
Distribution: West side of the Cascades in the Olympic Mountains; Washington south to California.
Habitat: Dry, rocky, open to lightly forested areas.