1997 IUCN red list of threatened plants (1997)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 1983)

Annals of the Missouri Botanical Garden - Missouri Botanical Garden. (Missouri Botanical Garden Press, 2002)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1993)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1994)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 1995)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2015)

Aquilegia - Colorado Native Plant Society. (Colorado Native Plant Society, 2015)

Checklist of vascular plants of the Southern Rocky Mountain Region - Snow, Neil Wilton (2009)

Ecological types of the upper Gunnison Basin : review draft - Johnston, Barry C. (U.S. Department of Agriculture, Forest Service, Grand Mesa-Uncompahgre-Gunnison National Forests, 1997)

Journal of the Arnold Arboretum - Arnold Arboretum. (Arnold Arboretum, Harvard University [etc.], 1987)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2010)

Journal of the Botanical Research Institute of Texas - Botanical Research Institute of Texas. (Botanical Research Institute of Texas, 2010)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1985)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1985)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1988)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1988)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 1988)

Madroño; a West American journal of botany - California Botanical Society. (California Botanical Society, 2000)

The New Mexico botanist - New Mexico State University. Cooperative Extension Service. (Range Science Herbarium and Cooperative Extension Service, 2010)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1985)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1985)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1985)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1997)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1997)

Plant associations of region two : potential plant communities of Wyoming, South Dakota, Nebraska, Colorado, and Kansas - Johnston, Barry C. (USDA Forest Service, Rocky Mountain Region, 1987)