Oncidium George McMahon (Oncidium Parade × Oncidium Golden Rialto)

The orchid Oncidium George McMahon is a hybrid in the Oncidium genus. registered with the Royal Horticultural Society by B.Cobbledick in 1989. Registered parents are Oncidium Parade × Oncidium Golden Rialto. The key influencing species of this hybrid are Oncidium alexandrae (44.73% ) Oncidium spectatissimum (17.38% ) Oncidium luteopurpureum (13.23% subgenus Odontoglossum ) listed in order of their genetic contribution.