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Goldthreads: The Genus
Coptis
West of the Cascade Mountains of Oregon and Washington
]
Oregon Goldthread, Cutleaf Goldthread, Fern-leaf Goldthread
Coptis aspleniifolia
Fernleaf goldthreads as seen growing in a large pot at the webmaster's Gresham, OR residence........April 18, 2017. This species is not native to Oregon.
Paul Slichter