DistributionRead full entry
DistributionMore info for the term: nonnative species
Yellow salsify occurs as a nonnative species throughout most of the United States and Canada. Extreme northwestern and southeastern distributions are tentative. Yellow salsify occurs in Alaska according to maps presented by the United States Department of Agriculture  but not according to the distribution map presented by the Flora of North America . In Canada, yellow salsify occurs in all provinces and territories except Nunavut . In the lower 48 US states, yellow salsify occupies all but Mississippi, Alabama, South Carolina, Florida, and maybe Georgia [39,147]. Yellow salsify does not occur in Hawaii .
Throughout most of its range, yellow salsify is described as infrequent, occasional, locally common, or scattered [17,56,63,123,155,159]. There are also reports of yellow salsify as common and widespread (Mahler 1988, as cited in ),[74,104], and large populations are reported from the southern Kootenay, Thompson-Nicola, and Okanagan regions of British Columbia .
According to a review by Clements and others , yellow salsify was introduced to North America as a garden plant in the early 1900s. Spread was likely from east to west, as this is was the pattern in the Pacific Northwest . Plants Database provides a distributional map of yellow salsify and its hybrids.