Gray Drift Affinity in the Distribution of the Purple Coneflower, Echinacea Angustifolia DC. (Compositae), in Minnesota

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Gray Drift Affinity in the Distribution of the Purple Coneflower, Echinacea Angustifolia DC. (Compositae), in Minnesota

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Abstract from paper presented at the 53rd Annual Spring Meeting of the Minnesota Academy of Science, College of St. Catherine, St. Paul, Minnesota, April 26-27, 1985

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