The orchid Dendrobium Elegant Heart is a hybrid registered with the Royal Horticultural Society by W.T.Upton in 1986.
Top three species ancestors and their influences are

• Dendrobium speciosum (50.00%)
• Dendrobium bigibbum (25.00%)  section: Phalaenanthe 
• Dendrobium tetragonum (25.00%)  section: Dendrocoryne