To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st January 2020 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Den. Golden Arch= speciosum x Lynette Banks registered: 19/10/2005 by Pham M. -Young D.
ANOS judging segment: Australian (Section Dendrocoryne )
Species composition summary:
speciosum 75.% fleckeri 12.5% jonesii 12.5%
Den. Golden Arch = speciosum x Lynette Banks = speciosum x [Eureka x speciosum]
Eureka = fleckeri x jonesii