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
Sarco. Greenhart
= Gwen x Weinhart registered: 8/10/2002 by Wilson KevinSpecies composition summary:
hartmannii 62.5% weinthalii 25.% olivaceus 12.5%
Detailed composition:
Sarco. Greenhart = Gwen x Weinhart = [Canary x hartmannii] x [hartmannii x weinthalii]
Canary = hartmannii x olivaceus