The orchid Dendrobium Orbach is a hybrid registered with the Royal Horticultural Society by Down Under N.O. in 2008.
Top three species ancestors and their influences are

• Dendrobium speciosum (56.25%)
• Dendrobium tetragonum (25.00%)  section: Dendrocoryne 
• Dendrobium bigibbum (12.50%)  section: Phalaenanthe