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Pinus ponderosa: A checkered past obscured four species


Potter, Kevin

A. Wofford
B. Cooper
C. Douglas
D.S. Gernandt
F.W. Telewski
H.H. Karemera
J. Lefler
K. Finch
M.F. Mahalovich
P. Lea
P. Marquardt
S.K. Langer
V. Hipkins
Willyard, A.

American Journal of Botany 104(1):161-181

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