To confirm the registration of a Dendrobium hybrid & view its composition/progeny: (Database as at 1 January 2018 RHS registrations)
Den. Louise's Rainbow= Colonial Surprise x Graham Hewitt ( has 7 hybrid progeny ) registered: 23/07/1997 by Klein I.
ANOS judging segment: Australian (Section Dendrocoryne / Phalaenanthe )
Species composition summary:
Den. Louise's Rainbow = Colonial Surprise x Graham Hewitt = [Aussie Angel x Aussie Ira] x [Ellen x speciosum]
Aussie Ira = Ellen x tetragonum = [kingianum x tetragonum] x tetragonum
Aussie Angel = Aussie Ira x bigibbum = [Ellen x tetragonum] x bigibbum
Ellen = kingianum x tetragonum