The orchid Phalaenopsis Yungho Princess Gelb is a hybrid registered with the Royal Horticultural Society by Yung-Ho in 1995.
Top three species ancestors and their influences are

• Phalaenopsis amboinensis (62.50%)  subgenus Polychilos  section: Amboinenses 
• Phalaenopsis violacea (25.00%)  subgenus Polychilos  section: Zebrinae 
• Phalaenopsis micholitzii (12.50%)  subgenus Polychilos  section: Amboinenses