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. Brimbank Gold
= Dunokayla x Cosmic Gold ( has 8 hybrid progeny ) registered: 13/06/2015 by Drobski, MichaelANOS judging segment: Australian (Section Dendrocoryne ) Den. Brimbank Gold 'Sydenham' AM/ANOS 2017 Photo David Adams

Species composition summary:
speciosum 78.1% fleckeri 10.9% falcorostrum 4.7% tetragonum 3.1% jonesii 3.1%
Detailed composition:
Den. Brimbank Gold = Dunokayla x Cosmic Gold = [Kayla x speciosum] x [Avril's Gold x speciosum]
Tweed = Peter x Sunglow = [fleckeri x falcorostrum] x [speciosum x fleckeri]
Aussie Spectrum = Peter x speciosum = [fleckeri x falcorostrum] x speciosum
Avril's Gold = Aussie Child x speciosum = [Hilda Poxon x Aussie Spectrum] x speciosum
Kayla = Lynette Banks x Tweed = [Eureka x speciosum] x Tweed
Hilda Poxon = speciosum x tetragonum
Eureka = fleckeri x jonesii
Peter = fleckeri x falcorostrum