The orchid Oncidium Lambeauianum is a hybrid registered with the Royal Horticultural Society by Peeters & Hye in 1904.
Top three species ancestors and their influences are

• Oncidium alexandrae (50.00%)
• Oncidium harryanum (25.00%)  subgenus Nevadensia
• Oncidium nobile (25.00%)  subgenus Odontoglossum