The orchid Oncidium Yolacta is a Oncidium hybrid.
registered with the Royal Horticultural Society
by Charlesworth Ltd. in 1948.
Registered parents are
Oncidium Actaeon
×
Oncidium Yolandum.
The key influencing species of this hybrid are
Oncidium alexandrae (68.75%
)
Oncidium nobile (6.25%
subgenus
Odontoglossum
)
listed in order of their genetic contribution.