The orchid Dendrobium Sideshow Alley is a hybrid registered with the Royal Horticultural Society by A.Blewitt in 2020.
Top three species ancestors and their influences are

• Dendrobium kingianum (37.50%)  section: Dendrocoryne 
• Dendrobium speciosum (24.22%)
• Dendrobium tetragonum (22.66%)  section: Dendrocoryne