''Crataegus putnamiana'' is a rare species of North American hawthorn derived from
hybridization
Hybridization (or hybridisation) may refer to:
*Hybridization (biology), the process of combining different varieties of organisms to create a hybrid
*Orbital hybridization, in chemistry, the mixing of atomic orbitals into new hybrid orbitals
*Nu ...
between a species in
''Crataegus'' series ''Coccineae'' and a species in
series ''Dilatatae''.
References
puntnamiana
Flora of North America
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