Reference:Robbins1944a
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Verbatim text: Robbins, G. T. 1944. North American species of Androsace. Amer. Midl. Naturalist 32: 137–163.
Author: Robbins, G.T.
Year: 1944
Title: North American species of Androsace
Journal: Amer. Midl. Naturalist
Volume: 32
Pages: 137–163