Locality: (37.648600, -112.836760)
Abstract: In 2005–2006, the National Park Service’s Northern Colorado Plateau Network received funding to develop a revised checklist of the vascular plant ﬂora of Cedar Breaks National Monument. This entailed a thorough review of existing literature, re-examination of specimens from the Cedar Breaks National Monument herbarium and other state and national museum collections, and additional ﬁeld work to corroborate unveriﬁed species reports and locate new species. Based on this study, 345 vascular plant taxa have been conﬁrmed or reliably reported as occurring in the monument (338 are known from validated herbarium specimens and 7 from unvouchered literature reports). Another 40 species formerly considered part of the monument ﬂora have now been shown to be falsely reported. The current ﬂora of Cedar Breaks National Monument represents 9.6% of the known ﬂora of Utah and 21.5% of the ﬂora of the Utah High Plateaus ecoregion. At least 18 of these species were formerly candidates for potential listing under the Endangered Species Act or are considered species of concern by the state’s natural heritage program. Introduced plants make up 5.2% of the monument ﬂora (18 species) but none are considered noxious weeds by the State of Utah. Further surveys in Cedar Breaks National Monument are likely to ﬁnd additional new species (217 are known from similar habitats outside the monument boundary), especially among fall-ﬂowering, weedy, or wetland taxa. Further ﬂoristic studies will be needed if the Ashdown Gorge Wilderness Area ultimately becomes part of Cedar Breaks National Monument. Please note: The current display of this checklist includes updates from 2011 and 2012.
Notes: 6,155 Acres