Hydrangeaceae
Hydrangea Family
2 genera
2 species
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Philadelphus lewisiiLewis' mock orange
Distribution: Widely distributed on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho and Montana.
Habitat: Dry to moist, partially shaded to open areas from low to middle elevations in the mountains.
Origin: Native
Flowers: May-July
Whipplea modestamodesty, common whipplea
Distribution: Occurring on the Olympic Peninsula in Washington; Washington to California.
Habitat: Dry, rocky, open to lightly forested areas.
Origin: Native
Flowers: April-June