Verbatim text: Parks, C. R. and J. W. Hardin. 1963. Yellow erythroniums of the eastern United States. Brittonia 15: 245–259.
Author: Parks, C.R., Hardin, J.W.
Year: 1963
Title: Yellow erythroniums of the eastern United States
Journal: Brittonia
Volume: 15
Pages: 245–259