Reference:Biddulph1944a
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Verbatim text: Biddulph, S. F. 1944. A revision of the genus Gaillardia. Res. Stud. State Coll. Wash. 12: 195–256.
Author: Biddulph, S.F.
Year: 1944
Title: A revision of the genus Gaillardia
Journal: Res. Stud. State Coll. Wash
Volume: 12
Pages: 195–256