NPSpecies

Park Species Detail: Opuntia polycantha var. polyacantha and var. erinacea intergrade freely, and distinction between these two varieties in the field becomes blurred. Habitat in this Park Unit = Generally occurring (or expected to occur) throughout the Park Unit, usually except at greatest elevations of the foothills. 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.