The orchid Dendrobium Dyah Katarina-Sianne Velvet is a hybrid . This orchid hybrid lacks official registration. The name is an internal designation created within the orchidroots system.
Top three species ancestors and their influences are

• Dendrobium violaceoflavens (37.50%)  section: Spatulata 
• Dendrobium lasianthera (12.50%)  section: Spatulata 
• Dendrobium lineale (9.38%)  section: Spatulata