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. Brolga= Suzanne x Hilda Poxon ( has 15 hybrid progeny ) registered: 1/01/1988 by Upton W.T.
ANOS judging segment: Australian (Section Dendrocoryne / Phalaenanthe ) Den. Brolga 'Gowie' HCC/AOC 1998
Species composition summary:
Den. Brolga = Suzanne x Hilda Poxon = [bigibbum x tetragonum] x [speciosum x tetragonum]