Publication: Kew Bull. 47: 101. 1992.
Origin: Native
Herbarium search: CPNWH
Notes: FNA20: "Multiple collections of Packera porteri are known from Colorado; single collections are known from Oregon (1899; collector indicated few plants were seen) and Washington (1996)."
Specimen at Kansas State University.
Last updated 10/31/2020 by David Giblin.