NPSpecies

Perhaps appearing in waif of highway roadside seedings, persistence should be monitored as this taxon can be aggressive. Legacy NPSpecies information may no longer be applicable, please remove if it is not applicable. In legacy NPSpecies Weedy value was Yes with comment: Potentially highly INVASIVE and AGGRESSIVE in this Park Unit; of high management concern; treatment advisable.

Park Species Detail: Habitat in this Park Unit = Generally restricted to foothills in and near the North Unit; may include Huff Creek meadows and Laidlaw Park areas; often in disturbed areas or weedy sites. Original data for this Park-Name Profile record were derived and entered by Steve J. Popovich, based upon a preponderance of evidence and the best scientific and commercial data available, including all specimen verifications by, and personal knowledge of project, park, and regional experts. Regional floral manuals used included: Intermountain Flora - Vascular Plants of the Intermountain West (1972-2005), A Utah Flora (2003), Flora of the Pacific Northwest (1973), Flora of North America (1993-2006), The Cruciferae of Continental North America (1993), various botanical monographs, Western U.S. floras, and other botanical works such as Weeds of the West (1996), USDA Natural Resources Conservation Service PLANTS database, and Natural Heritage Program, Idaho Conservation Data Center Element Occurrence database., Park Species Data Source: Original data derived by Steve J. Popovich 1999-2007 based upon a preponderance of evidence and the best scientific and commercial data available, University of Idaho Contract P.O. No. P0011391.