The orchid Oncidium Nancy Davidson is a hybrid in the
Oncidium genus.
registered with the Royal Horticultural Society
by Hanbury in 1937.
Registered parents are
Oncidium Camilla
×
Oncidium Thelma.
The key influencing species of this hybrid are
Oncidium alexandrae (21.88%
)
Oncidium nobile (20.31%
subgenus
Odontoglossum
)
Oncidium harryanum (7.81%
subgenus
Nevadensia
)
listed in order of their genetic contribution.