The orchid Dendrobium Raging Certainty is a hybrid registered with the Royal Horticultural Society by Kwan Sam Hoi in 1985.
Top three species ancestors and their influences are

• Dendrobium discolor (50.00%)  section: Spatulata 
• Dendrobium lasianthera (37.50%)  section: Spatulata 
• Dendrobium taurinum (6.25%)  section: Spatulata