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Yampah Perideridia gairdneri


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credit: J Schmidt, NPS

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Alternate name: Common Yampah

Family: Apiaceae, Carrot view all from this family

Description Native perennial. Caraway-scented. Height: to 5'. Habit: erect, slender, alternate. Leaf: pinnate, with thin entire leaflets 1-6" long. Leaves may wither before the plant blooms. Flower: flat white compound umbel, 1-3" across, of small spherical flower clusters. Root: one to three thick tubers up to 3 inches long.

Flower April-May.

Habitat Grows in many habitats including grasslands, meadows, forests, streambanks, mountainsides, and tundra.

Range Western U.S. and Canada, California to British Columbia, west to
Colorado, South Dakota and Saskatchewan.

Discussion Also known as: common yampah, Gardner's yampah.