Hydrangeaceae
Hydrangea Family
2 genera
2 species
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Philadelphus lewisiiColumbian mock orange, Lewis' mock orange, Piper'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).
Origin: Native
Flowers: May-July
Whipplea modestamodesty
Distribution: West side of the Cascades in the Olympic Mountains; Washington south to California.
Habitat: Dry, rocky, open to lightly forested areas.
Origin: Native
Flowers: April-June