Oregon Yampah

Perideridea oregana

a characteristic carrot family umbel of small white flowers with an orange and black butterfly visitor

Photo Credit: Terry Spivey, USDA Forest Service, Bugwood.org

Plant Description

Oregon yampah is a perennial herb in the carrot family native to moist meadows, grasslands, and open woodlands of the Pacific Northwest. It grows from slender edible tuberous roots and produces upright, branched stems 1–3 feet tall, topped with umbels of small white flowers in summer that resemble those of Queen Anne’s lace. The foliage is finely divided and feathery, giving the plant a delicate appearance. Ecologically, yampah provides nectar and pollen for a variety of insects, including native bees and flies, while its roots are an important traditional food source for native people.

Plant Details

Life Forms	Forb
Habitats	Conifer forests Forest edges Forest openings Forest understories Gardens Hillsides Little Habitats Meadows Mixed hardwood-conifer forests Oak savannas Oak woodlands Prairies Residential yards Riparian areas Seeps Trailsides Wet prairies Woodlands
Soil and Moisture Conditions	All soil types Dry to moist Nutrient rich soil
Special Uses	Attracts pollinators and or other beneficial insects Blooms August Blooms July Blooms June Flowering Flowers green Flowers white Herbaceous Perennial Produces nectar Produces pollen Produces seeds Provides wildlife habitat
Shade Preference	Full sun Part shade
Mature Height	4"-3'