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
Schy. Twiggy= Schistotylus purpuratus x Sarcochilus falcatus registered: 11/11/2009 by Roper N.
Species composition summary:
Sarcochilus falcatus 50.% Schistotylus purpuratus 50.%
Schy. Twiggy = Schistotylus purpuratus x Sarcochilus falcatus