Distribution Colorado endemic: Yes Global Endemic to Colorado; known from the Roan Plateau in Garfield County. Estimated range is 1,365 square kilometers (527 square miles), calculated in GIS by drawing a minimum convex polygon around the known occurrences (estimated by the Colorado Natural Heritage Program in 2008). Distribution map of Roan Cliffs blazing star (Nuttallia rhizomata) in Colorado Threats and Management Issues Summary results of an analysis of the status of Nuttallia rhizomata on several ranking factors. This species was concluded to be “weakly conserved”. From Rondeau et al. 2011. Oil and gas development and mining oil are possible threats for most of the known occurrences. Many of the occurrences are on private land owned by oil companies, and the remaining are on BLM lands which are also leased for mining activities. Other potential threats include road construction and maintenance activities. Ackerfield, J. 2015. Flora of Colorado, Colorado State University Herbarium, Botanical Research Institute of Texas Press, Fort Worth, Texas. 818 pp. Colorado Natural Heritage Program. 2017. Biodiversity Tracking and Conservation System. Colorado State University, Fort Collins, CO. Colorado Noxious Weed Act. 2003. Title 35: Agriculture, Article 5.5: Colorado Noxious Weed Act, and 8 CRR 1203-19 Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act. Elliott, B. A., S. Spackman Panjabi, B. Kurzel, B. Neely, R. Rondeau, M. Ewing. 2009. Recommended Best Management Practices for Plants of Concern. Practices developed to reduce the impacts of oil and gas development activities to plants of concern. Unpublished report prepared by the Rare Plant Conservation Initiative for the National Fish and Wildlife Foundation.
Distribution Colorado endemic: Yes Global Endemic to Colorado; known from the Roan Plateau in Garfield County. Estimated range is 1,365 square kilometers (527 square miles), calculated in GIS by drawing a minimum convex polygon around the known occurrences (estimated by the Colorado Natural Heritage Program in 2008). Distribution map of Roan Cliffs blazing star (Nuttallia rhizomata) in Colorado Threats and Management Issues Summary results of an analysis of the status of Nuttallia rhizomata on several ranking factors. This species was concluded to be “weakly conserved”. From Rondeau et al. 2011. Oil and gas development and mining oil are possible threats for most of the known occurrences. Many of the occurrences are on private land owned by oil companies, and the remaining are on BLM lands which are also leased for mining activities. Other potential threats include road construction and maintenance activities. Ackerfield, J. 2015. Flora of Colorado, Colorado State University Herbarium, Botanical Research Institute of Texas Press, Fort Worth, Texas. 818 pp. Colorado Natural Heritage Program. 2017. Biodiversity Tracking and Conservation System. Colorado State University, Fort Collins, CO. Colorado Noxious Weed Act. 2003. Title 35: Agriculture, Article 5.5: Colorado Noxious Weed Act, and 8 CRR 1203-19 Rules pertaining to the administration and enforcement of the Colorado Noxious Weed Act. Elliott, B. A., S. Spackman Panjabi, B. Kurzel, B. Neely, R. Rondeau, M. Ewing. 2009. Recommended Best Management Practices for Plants of Concern. Practices developed to reduce the impacts of oil and gas development activities to plants of concern. Unpublished report prepared by the Rare Plant Conservation Initiative for the National Fish and Wildlife Foundation.