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. Nell
= Marion x falcatus registered: 20/11/2003 by Roper N.Species composition summary:
falcatus 50.% olivaceus 25.% fitzgeraldii 12.5% hartmannii 12.5%
Detailed composition:
Sarco. Nell = Marion x falcatus = [Fitzhart x olivaceus] x falcatus
Fitzhart = hartmannii x fitzgeraldii