Verbatim text: Fernald, M. L. and C. A. Weatherby. 1922. Varieties of Geum canadense. Rhodora 24: 47–50.
Author: Fernald, M.L., Weatherby, C.A.
Year: 1922
Title: Varieties of Geum canadense
Journal: Rhodora
Volume: 24
Pages: 47–50