To confirm the registration of an Australian native hybrid & view its composition/progeny: (Database as at 1st April 2018 RHS registrations)
For non-Australian Dendrobium hybrids use the Dendrobium Hybrids checklist here
Den. Glenn Star= Rosella x speciosum ( has 2 hybrid progeny ) registered: 6/11/1991 by Peck A.
ANOS judging segment: Australian (Section Dendrocoryne / Phalaenanthe )
Species composition summary:
Den. Glenn Star = Rosella x speciosum = [tetragonum x Suzanne] x speciosum
Suzanne = bigibbum x tetragonum