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2015 Steve Matson   cc-by-nc

Swertia perennis (Felwort) is a species of perennial herb in the family Gentianaceae. They are native to Alaska, The Contiguous United States, Canada, and Western North America.

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EOL has data for 14 attributes, including:

Known occurrences, collected specimens and observations of felwort. View this species on GBIF