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Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2015)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2016)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2018)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2019)

Capital natural de México - Sarukhan, Jose (Comisión Nacional para el Conocimiento y Uso de la Biodiversidad (CONABIO), 2008)

The Caribbean forester - Burke, Lauretta Marie (Tropical Forest Experiment Station, United States Forest Service, 1939)

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Catálogo de las plantas vasculares de la República Argentina - Morrone, Osvaldo (Missouri Botanical Garden, 1999)

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A catalog of cultivated woody plants of the southeastern United States - Meyer, Frederick G. 1917 -2006 (U.S. Dept. of Agriculture, Agricultural Research Service, 1994)

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Catalog of Ohio vascular plants, arranged according to the phyletic classification; with notes on the geographical distribution in the state, based mainly on specimens in the State Herbarium, Botanical Laboratory, the Ohio State University - Schaffner, John H. (John Henry), 1866 -1939 (The Ohio State University, 1914)

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A checklist of New York State plants - Mitchell, Richard S., 1938 - (University of the State of New York, State Education Dept, 1986)

Checklist of the vascular plants of Alabama from the John D. Freeman Herbarium and the University of Alabama Herbarium - Morton, Cynthia M. (Carnegie Museum of Natural History, 2002)

Checklist of the vascular plants of Powdermill Nature Reserve, Westmoreland County, Pennsylvania - Utech, Frederick H. (Carnegie Museum of Natural History, 1999)

Checklist of the vascular plants of Steamboat Mountain Research Natural Area - Pacific Northwest Forest; Range Experiment Station (Portland, Or.) (U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1981)

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

Circle West vegetation monitoring study - Montana. Energy Division. (Energy Division, Montana Dept. of Natural Resources and Conservation, 1982)

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Coefficient of conservatism rankings for the flora of Montana. report to the Montana Department of Environmental Quality, Helena, Montana. Part I - Montana. Department of Environmental Quality (Montana Natural Heritage Program, 2015)

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