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The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 1998)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2000)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2001)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2002)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2003)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2004)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2005)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2007)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2009)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2010)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2015)

The Canadian field-naturalist - Ottawa Field-Naturalists' Club (Ottawa Field-Naturalists' Club, 2017)

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Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2007)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2008)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2009)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2010)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2011)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2012)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2013)

Canotia - Arizona State University. Vascular Plant Herbarium. (Vascular Plant Herbarium, School of Life Sciences, Arizona State University, 2014)

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, 2017)

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)

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Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2002)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2006)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2009)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2011)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2012)

Castilleja : the newsletter of the Wyoming Native Plant Society - Wyoming Native Plant Society. (Wyoming Native Plant Society, 2019)

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

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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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Catalog of seeds : my forty fourth year - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harry E. Saier, 1955)

Catalog of seeds. my forty seventh year. No. 17 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harry E. Saier, 1958)

Catalog of seeds. my forty seventh year. No. 18, December 1958 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harry E. Saier, 1958)

Catalog of seeds : my forty sixth year. No. 15 - Henry G. Gilbert Nursery; Seed Trade Catalog Collection. (Harry E. Saier, 1957)

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