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. Tarnie
= Weinhart x Heidi ( has 1 hybrid progeny ) registered: 26/10/1995 by Roper N.Species composition summary:
hartmannii 62.5% weinthalii 25.% fitzgeraldii 12.5%
Detailed composition:
Sarco. Tarnie = Weinhart x Heidi = [hartmannii x weinthalii] x [Fitzhart x hartmannii]
Fitzhart = hartmannii x fitzgeraldii