Common Yampah, Gairdner's Yampah, Gardner's Yampah, Western False Caraway
Perideridia montana
Synonyms: Atenia montana, Carum garrettii, Carum montanum, Perideridia gairdneri, Perideridia gairdneri ssp. borealis, Perideridia gairdneri var. montana, Perideridia lemmonii
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Gairdner's yampah blooming at left in a moist bald along the Pacific Crest Trail about one mile south of Hobart Bluff, Cascade-Siskiyou National Monument.....May 28, 2021. The photo at right shows Gairdner's yampah on Rhyolite Ridge several hundred yards west of Pilot Rock, Cascade-Siskiyou National Monument......May 26, 2021.
The photo above shows a top view of the flattened
inflorescence of common yampah as seen at a dry creek along Road K1000 near
the Klickitat-Yakima County line.......July 28, 2006.
A somewhat out of focus, sideview of the umbel
of common yampah. Note the narrow bracts at the base of the umbel. Photographed
at a dry creek along Road K1000 near the Klickitat-Yakima County line......July
28, 2006.
The photo above shows a single umbelet of common yampah. Note
the rounded fruits which are wide in one cross-section and narrow in the plane perpendicular to the first. Photographed along Lakeside Road in Conboy National Wildlife
Refuge........September 8, 2007.
Close-up view of the basal leaf of Gairdner's yampah as seen in moist riparian or seep areas that dry by late spring on the Labyrinth, mid-Columbia River Gorge.......April 15, 2010. The basal leaves have often dried and disappeared by the time the plants flower in early summer.
Paul Slichter